I don't think nintendo created a short supply to hype the market. If anything, they underestimated the market on what people would pay. They could have priced it $10-20 more and it would have still sold out.
I think the people buying it is more for the "it's cool to have". As they will get bored of it pretty quick
If ppl have the cash and they want it. Let them be. I would spend $300 on one now but I know there's lots of things that I buy that ppl think it's not worth the money