Do you still play your old games? How much replay value can a game have?

[Gamerace]

Lots! Most often the original arcade Mario Bros (Wii VC), Demon Crush, Pac-man, Frogger or Galaga.
Occasionally Mario Kart, Super Smash Bros, or Dewy's Adventure
Played Baldur's Gate a few times and would again if I had the time

Played Unreal Tournament endlessly for years on PC too.