Record companies do not limit supply to drive up costs and demand. It does not work that way. They press as many as they think they can sell. There is no gouging or collusion on their part. They are in business to make money and it would be stupid of them to limit supply when the demand is there.
That's debatable. Maybe that wasn't the intent in this case. But there are plenty of times many industries intentionally limit things below the expected demand to drive up interest. Record store day is based on this at this point, it's nothing but an excuse for people to line up early and buy limited supplies that they have no interest in owning, to immediately flip on ebay for a large profit. That may not have been the original intent, but limited supplies doesn't make for a fun collectible, it makes for an opportunity for middle men to make a profit off of the collectors. Also, quite often things are advertised as limited supplies, limited edition.....certainly this is to drive up sales. Buy it now, you won't have the chance tomorrow. Maybe it's not fair to suggest that driving up cost and demand is the only reason for limited supplies, but certainly they are factors.