Gameplay 100%!

It's a simply question: In 15-20 years, the games you'll remember as the ones you loved the most... The ones you can re-play any day of the week.....
Do you really think that their graphics will be the factor by which they will be set apart from the rest?

One thing's for sure, I think\hope I'll remember the first game I'll play which runs on Euclideon's engine ..... Hopefully.