No matter what you do, it seems KDP is ultimately a volume game
You write a book, make the cover as good as you can, optimize the blurb, keywords, etc., and then you run Amazon ads.
But once the ads start getting clicks, it feels like the math becomes brutally simple.
If you're getting roughly 1 purchase for every 10 clicks, then even a genuinely good book still needs a lot of traffic to generate meaningful sales.
And that's what I'm struggling to understand about KDP.
At some point, does it basically become a volume game?
You can improve your cover, title, description, reviews, targeting, conversion rate, etc. — but there seems to be a ceiling on how much you can optimize one individual book.
So instead of trying to make one book produce a huge amount of income, the strategy seems to be:
More books → more ads → more clicks → more purchases → more overall revenue.
Obviously, a 10% conversion rate isn't universal, and I'm sure some books/categories perform much better or worse. I'm just using it as an example.
I'm curious what experienced KDP publishers think:
Is significant KDP income primarily a volume game once you've reached a certain level of book quality?
Or are there ways to dramatically improve the economics of an individual book beyond simply getting more traffic?