Not entirely true, and also not accepting that one person's "scalper" is another person's "bought this but decided I would rather have the money it seems to be worth now that I see how much this is".
Secondary markets provide liquidity, allow for original sellers to trade money for time, provide reputational protection based on societal perceptions (this one is a bit weird, and maybe the less defensible of the reasons. Selling your own inventory on a secondary market to avoid negative press for high prices is thwarting normal market information principles, IMO), etc.
Not entirely true, and also not accepting that one person's "scalper" is another person's "bought this but decided I would rather have the money it seems to be worth now that I see how much this is".
Secondary markets provide liquidity, allow for original sellers to trade money for time, provide reputational protection based on societal perceptions (this one is a bit weird, and maybe the less defensible of the reasons. Selling your own inventory on a secondary market to avoid negative press for high prices is thwarting normal market information principles, IMO), etc.