Even having gears at all can be a bit annoying, with the newer groupsets having a million gears in the cassette and proprietary chains. I really love my fixed gear.
Your fixie still has that greasy, dirty chain to deal with. I'm sticking with my 1886 Columbia Standard high wheeler. Two pedals, two wheels, and a place to sit. That's all you need.
(To be read for comedic purposes only. I don't actually ride that one to work.)
Fix gears are fine as are non-fixed single speeds, but I need my variable mechanical advantage for hills, maybe if I lived in Chicago I'd be all in for a fixie.
(To be read for comedic purposes only. I don't actually ride that one to work.)