In this particular case, it's a bit more complicated.

I suspect the majority of 30x0 & 40x0 card sales continue to be for non-gaming or hybrid uses. I suspect that if pure gamers stopped buying them today for months, it wouldn't make much of a difference to their bottom line.

Until there's reasonable competition for training AI models at reasonable prices, people are going to continue buying their cards because it's the most cost-effective thing -- even at the outrageous prices.