[Suicide Junkie]

I expect no more than a week of play from a game that is a true classic, because that's all the time one can spend on a game if you wish to play more than one a month.

You must go through games like toilet paper!

If it is a true classic, you should be playing it until the CD/Floppy wears out
Not to the exclusion of everything else, of course, but Classics are the ones that keep you coming back!