Mostly it's because they (the sellers) have something the slacker doesn't, but wants. But doesn't want to pay for.
These self righteous momos screeching about evil gougers, flippers, illegal dealers, etc., have no idea when anyone bought anything, how much they paid for it, or how much they actually sell it for. They are Karens trying desperately to remain relevant in a changing marketplace in which they cannot participate.
It won't be long before these nitwits not only whine and cry about your prices but also about what you do with any profit realized. It's coming as sure as the world. So, they'll want to approve prices, margins and disposition of profits. Karens, all of them. We used to call them busybodies.
>cope lmao