If I recall correctly, the 3090, 3090 Ti and 4090 were supposed to replace the Titan cards that had been Nvidia's top gaming cards, but were never meant for gaming.
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.
Of course they did, the 3090 came out at the height of the pandemic and crypto boom in 2020, when people were locked indoors with plenty of free time and money to spare, what else where they gonna spend it on?