Yep. The whole fake frames thing seems like a witch hunt to me. If you can actually get a 5090 and were previously fully utilising a 3090 or 4090, it is a significant upgrade, as long as it doesn't burn your house down.
The generated frames thing is interesting as it's an obvious example of the whole discussion around halo products (the x080 or x090 cards), "the rich get richer", it takes up a lot of air in the room but is only appropriate for a small vocal proportion of the market.
As you say you need a good framerate to start with before generated frames make sense so either you're already running well with a high tier card and are further able to show off the combination of framerate/resolution/detail level, or running a lower tier card at lower settings turning the graphics down further which can be a very obvious trade off. Less demanding games which are generally online competitive usually wouldn't do as well with any extra latency introduced, and the situation where I've heard it would be a good fit is emulators or any kind of game where the CPU is the limiting factor
I just don't think the 5090 is for gamers; it's for hobbyist AI people who want to buy multiple to run high parameter LLMs. Fake frames are irrelevant to this crowd, even if they take one of their 5090s aside to game once in a while.
