GPUs are hitting diminishing returns fast and it seems like Nvidia is compensating lower sales with higher prices. The last GPU-intensive game we had was Cyberpunk in 2020 and there doesn't seem to be many more heavy hitters on the horizon really. Nvidia is probably sweating realizing that there comes a point where a faster GPU doesn't really have much more benefits to what's already out there.
And virtually every game will be developed with a PS5 and Series X in mind, if you already own a 3080/3080ti/3090 why would you even upgrade? What game is going to take your 4090 to the cleaners? Unless you want to play cyberpunk at 100+ fps in 4k, but the people that wanna do that are a minuscule portion of the market.