This seems like a huge failure to correctly price products if there are actual shortages and people standing in line (except maybe on launch day, that might be good publicity). The gaming market seems very elastic on the demand side, few people actually _need_ a new rig urgently, so an increase in price could effectively limit the initial demand and get them to people who need/want them most while increasing margins for manufacturers or sellers.
As it is now private middlemen take that profit, presumably by standing in said lines wasting a lot of time. And buyers now have to trust some rando on ebay to actually ship a 2k$ graphics card. That is not an optimal outcome.