Someone very clever at Nvidia realized that if they rename their professional card (Titan) to be part of their "gaming" line, you can convince adults with too much disposable income that they need it to play Elden Ring.
I didn't know of anyone who used the Titan cards (which were actually priced cheaper than their respective xx90 cards at release) for gaming, but somehow people were happy spending >$2000 when the 3090 came out.