I only buy games I know I'll like and are worth the purchase. For example, Super Smash Bros Brawl, Pokémon... I've bought certain online games that need to be purchased to be played, too, like WoW or GuildWars. And I obviously buy books, both "real" books (i.e. narrative literature, for example) and comic books (i.e. both trade paperpack and hardcover comic books). I don't buy manga, though. I don't like it.