No I don't, because this is a very labour-intensive way of sourcing stock. Mostly we'll buy bulk lots (some working, some faulty, some untested), refurb what needs refurbing, bundle to create greater-than-sum-of-parts listings and sell individually through custom scripts what can be sold efficiently this way.
>finding ever-newer ways of cheating each other and gaining an 'advantage' on others.
I don't spend a single second of my day thinking about how to fuck over my customers. On the flip side, I am ears-to-the-fucking-ground aware of what they want and constantly trying to come up with more efficient ways to deliver this.
>fuck capitalism
I'm not going to say it has its flaws, but a business that creates zero externalities, spends $0 on lobbying, creates well-paid jobs (OK, just one right now, but we're looking to hire another couple of people this year) and makes thousands of customers happy every year doesn't seem like a good example of why the system doesn't work.