They all just want a piece of the pie but you're right. Most people do not really understand it the second hand market. I've been to record stores where they are pricing things around listing prices on discogs instead of even median values. They think "well--it's listed at $150 so you can't buy it for cheaper than that!" Yet nobody has even purchased that record at anywhere near that price. Listed prices on albums have gone CRAZY the past few months it seems too.
Look at Rappcats and how they sold some leftover copies of the Zamrock box, which I believe was list price of $225 on VMP:
The Story of Zamrock has been long sold out via Vinyl Me, Please. These are the last remaining copies – which we are happy to offer for half of the lowest listing on Discogs.
There was one listing on discogs at that point, which was $800. Rappcats flipped their own product for $400. That's INSANE to me. These companies are manufacturing things with false scarcity, then using that to justify raising prices because the "resale value" is high. They are setting the market rate themselves and then trying to use that to justify represses to charge more money. Just because one person bought Blonde for $1,500 on discogs doesn't mean Frank Ocean should charge $1,000 for his next LP.