[jfim]

Multiple reasons. It wouldn't look good on nVidia if they were to raise prices too much. Between being known as a company that doesn't have enough supply/is too popular sounds much better than a company that price gouges their customers.

Gamers are also perceived as being loyal to a given brand, which is always good to ensure a certain level of demand and interest for their future products. If they can't buy a given product, they hardly can be loyal to that particular brand.

Miners are more rational actors, and will pay as much as needed to secure as much supply as they possibly can, as long as they can turn a profit. If the price of cryptocurrency is high, so is the price that miners are willing to pay.

While this sounds good for nvidia, miners will also dump unprofitable cards on the used market, therefore competing against new products from nvidia. If the price of cryptocurrency crashes, as it has done before, then there might be tens of thousands of used GPUs all flooding the market at a certain time. As these would be priced to sell, and the miners have likely turned a profit on the card already, any amount of money that they can get on selling the cards is just pure profit.

Nvidia probably doesn't want to have this sword dangling above their heads. It would be pretty bad for them to announce a new series of GPUs at the same time that the cryptocurrency market crashes, as they'd have to compete against used GPUs at fire sale prices.