A "Perfect Seven" is a game that one rides the hell out of but which has distinct, specific, and deep pieces they don't really like or which are more generally panned, yet they find those particular pieces or flaws add to the game's character immensely. Those flaws may also (or otherwise) simply be overridden by other factors which outweigh them so greatly that they practically do not matter. Perfect Sevens are arguably better than otherwise """better""" games purely for the amount of spunk and power they have. They may also make a deeper mark on the players who love them in this sense.