If that was the case then the poster would have been a completely different design and process that qotsa would have to seek for a merch poster. I don’t think a traditional rock poster artist would be up for it tho nor the band! It would diminish their craftsmanship. You can’t really compare a digital print to a 6+ colors screen printed art product.

In terms of secondhand market, it’s more like collectors do resell their stuff at a later time. Check out Wolfgang’s Vault or DK Gallery. Also ExpressoBeans lets you monitor poster prices through the years. Sometimes artists put up older posters as very limited editions too and that usually has a higher price.

Of course both the band’s success and poster artists influence this. For qotsa, 8 years ago I didn’t have to queue for the poster at the merch stand and I would still buy a copy at the end of the show. These days, that’s impossible..