In regards to upgrading, well, enthusiasts are enthusiasts
My mindset though, I prefer to upgrade when my GPU struggles in the games I play (graphical differences depends on the games, but let's set the bar somewhere below medium)...And with the majority of games still being DX9 console ports, that hasn't yet happened
I've seen quite alot of people say that they see no reason to go for a upgrade their aged GPUs yet, because they don't play the games where it really makes a difference