Amazon Isn't Saturated. It's Just Done Carrying Amateurs.
Let me start with a number that should stop you dead.
Over the last four years, roughly a quarter of Amazon's sellers packed up and left. The active seller base fell from about 2.4 million to 1.8 million. On paper, that's a market in retreat — the kind of stat you'd screenshot to justify never bothering.
Now here's the number that sits right next to it: in that exact same window, the count of sellers doing over a million a year didn't shrink. It roughly doubled. Six-figure-a-month brands are everywhere now. The money didn't leave. The money got concentrated.
So when someone tells you "Amazon's saturated, mate, you've missed it" — they're reading the survivorship data backwards. They're counting the planes that came back full of holes and armouring the wrong thing.
The saturation myth is the most comfortable lie in e-commerce
I get why people love it. "It's saturated" is a fantastic excuse. It means the reason you're not winning is the market, not the work. It's external. It's nobody's fault. You can say it at a barbecue and everyone nods.
The problem is it's just wrong. A market that's genuinely saturated doesn't lose a quarter of its participants while the top end doubles its revenue. That's not saturation. That's a filter working exactly as designed.
What actually happened is that Amazon stopped being a place where you could turn up with a mediocre listing, a bit of PPC budget, and a prayer, and still stumble into money because demand was outrunning supply. That era is over. It's not coming back. And a lot of people who benefited from it have quietly left and told everyone the pond dried up. The pond didn't dry up. They just stopped being big enough fish for it.
This is professionalisation, and it's the best thing that could happen to the right person
Here's the reframe. Amazon didn't get harder. Amazon got serious. It went from side hustle to actual industry — the way a scrappy five-a-side league eventually turns into a proper division with coaches, analysts, and set-piece routines. The casuals drop out. The people who treat it like a job stay and win bigger, because there's more room per serious operator once the tyre-kickers clear off.
And this is where I have to be straight with you, because I never tell anyone to go and "start an Amazon business." I won't do it. Amazon is not a get-rich-quick scheme and it never was. It's for people willing to graft — and if you're not, this filter is going to catch you exactly like it caught the quarter who just left.
But if you are willing to do the work? Then this is brilliant news. Every amateur who leaves is a competitor who's no longer bidding against you on your keywords, no longer undercutting your Buy Box, no longer diluting your niche. The barrier to entry going up is a moat — and moats only feel like walls when you're standing on the wrong side of them.
Anyone who's sold into the EU knows this feeling in their bones. VAT registration, EPR, GPSR, all the compliance that makes people groan and give up — every one of those hurdles is a competitor filter. The frustration is the moat. Amazon's professionalisation is the same mechanic, just applied to the whole platform at once.
What "professional" actually means (it's not magic fairy dust)
Now, I want to be careful here, because "just be professional" is the kind of advice that sounds great and helps nobody. So let me be concrete about what's actually separating the doubling group from the leaving group.
It isn't a secret tool. It isn't some growth hack in a £2,000 course. I'll tell you exactly what it is, because we say it on The Upside Podcast constantly: it's trained human judgment applied to data, all the time, without getting bored.
The amateurs look at the keywords that are already winning and pour more money in. Feels productive. It's actually just admiring the planes that made it back. The professionals ask the harder question — what am I not seeing? Where's the demand I'm not capturing, the niche I'm under-indexed in, the drop-off in the funnel that the dashboard isn't shouting about? Same data. Completely different question. That gap in questioning is most of the gap in revenue.
It's the difference between chasing ACOS down until you're "efficient at becoming irrelevant," and actually running the business on TACOS because you understand advertising is a route into a market, not a scoreboard. It's watching the whole share-chain — are you losing at impression, at click, or at conversion? — instead of panicking at a single red number. It's boring, honestly. It's grind. It's hard work and expertise and paying attention. There's no fairy dust. There never was.
So, is this actually for you?
That's really the only question the Competition Paradox asks.
The market isn't full. It's filtered. There are fewer competitors and more money per serious operator than at almost any point in Amazon's history — but you have to be good enough, and willing enough, to be in the room. The people telling you it's too late are, more often than not, the ones who couldn't be bothered to get good.
I'm not going to tell you to start. That's not my line and it never will be. But if you've already decided you're in, and you're prepared to graft for it? The door's still wide open. It's just got a bouncer on it now, and the bouncer is competence.
FAQ
Did Amazon really lose a quarter of its sellers, or is that number being read wrong?
Yes, the drop is real, but it's being read backwards. Amazon's own ranking system (A9/A10) has shifted more weight onto conversion rate and listing quality over raw traffic in recent updates, so a thinner seller base didn't loosen competition — it raised what "ranking well" actually requires, which is exactly why the sellers left behind are earning more, not less.
Is it too late to start selling on Amazon in 2026?
No, but that's the wrong question to be asking. What's changed is that new entrants now need to build tighter margins into the plan from day one — accounting for referral fees and realistic ad costs upfront — rather than assuming organic growth will cover the gap the way it might have five years ago.
What actually separates the sellers whose revenue doubled from the quarter who left?
It's a specific habit, not a bigger budget: reviewing share-of-voice at every stage — impression, click, conversion — on a weekly cadence rather than glancing at a monthly ACOS number. That weekly discipline is what catches a drop-off before it shows up as a revenue problem, and it's rarely what separates a listing with good keywords from one that's actually winning.
About the author
Zamir Cajee is co-founder of This Way Up, a UK business specialising in Amazon marketplace strategy, and co-host of The Upside Podcast, where he and the team break down how Amazon actually works — and how it lies to you. Zamir has built multi-million dollar businesses from scratch and has been selling into the EU since 2016.
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