For me, a fixed gear makes a great second bike. It lacks the versatility a geared bike does (I *promise* someone will argue otherwise), since when I am out on a group ride, gears and brakes are wonderful things. Its pretty hard to ride in a paceline with only one gear. If you're planning on always riding alone I'd say get what you like, but as a primary bicycle I don't think I would choose a fixed gear, despite the fact mine sees more miles than my road bike. I guess what I am saying is that my road bike can fulfill every role my fixed gear can, but not vice-versa.