iconguy- do you mean you've played other games for that amount of time as well?

I think I could possibly have played Doom for a comparable amount of hours as JJ2 if you count Doom 2 / TNT / Plutonia as well, but that's about it. I'd say maybe Quake 3 Arena in third place. I must have an incredible amount of hours between all the Keen games, but that's 6 games combined... In the long run games don't really hold my attention for really long. I only really replay DOS games consistently...