Obviously it jumps out when you go play older games that graphics have improved but that shouldn't hinder your enjoyment of it. The only thing that hinders my enjoyment of classic games is older gameplay that has been surpassed to the point it's too awkward to play anymore.
It just isn't comfortable going back and playing Goldeneye on the N64 with the controls used back then but playing SM64 or WWF No Mercy is still a blast.
Definitely not a fan of playing pre-RE4 Resident Evil games. It's one thing to go from Wii aiming to the older controls in RE4 GC. But it's just too much to go back to the pre-rendered backgrounds with a fixed camera that the original games used.







