Revenue, not profit.

You can make millions on just about anything. It’s not hard. Making a healthy margin is something else entirely.

3P sellers don’t really care. If they make $5,000 on $1.5m in revenue it’s fine. They don’t do any real work. They are just middle men. They just try to do as much as possible. The item doesn’t matter, the customer doesn’t matter. If their is a listing and they can sell against it and make a few cents per sale that’s good enough.

Amazon has created a horrible race to the bottom model and they don’t care either because they benefit as well.

I got my folks a bird feeder a few years ago when they bought a new house. I grew up a few miles from there, remembering only sparrows, blackbirds, robins, etc and on rare occasions a yellow bird, or a brown bird, or red-wing blackbird. But with a bird feeder, it was amazing to see the number of unique birds that show up now every few minutes, birds of all colors that I didn't even know lived in the area.