A lot of people that I know and know of shop at goodwill and then resell the items on places like Depop (marked up). I also know of some boutiques that have a similar tactic. It’s worth it to some people to buy marked up items from these places and individuals because going and finding something at goodwill can be a pain and there’s no guarantee you will find anything worthwhile anyway. I think goodwill has caught onto this and has decided to raise prices on some goods.