Yea, but when it does burn out you are stuck in the dark. That happened to me twice, once at a bad time, but never will again. If it is an EDC light chances are most people wont be carrying a spare bulb on their person.
The incandescent light isn't always brighter and more focused, if you think so you haven't seen an L2, E1L, or Gladius. The price difference isn't that bad either when you think in the long run. An L2 (2 battery) is $165 directly from Surefire, the C3 which has basically the same lumens, run time, and size is $135 (but it uses 3 batteries). I would pay the extra $30 for a flashlight that I never have to worry about it burning out. In fact if you bought a spare bulb and the extra battery they would cost the same.