The blog, Games for Lunch, has an interesting idea as its basis. Each entry is a kind of small review of a game played for an hour, at the of which the question, “Would I play this game for more than an hour?” is asked and answered.
Let’s face it, if a game hasn’t grabbed you after an hour of play, is it likely to do so? At the very least, a game should intrigue you enough so that you want to continue playing after that first hour.