+1. Deeper wheels are not difficult to control in a crit and make a huge difference if you are on or near the front, or moving up the side of the pack. The aero benefit you get at high crit speeds is immense. Cue, "it's all about the engine" replies... yes, but why do more work then you have to?
Edit: my engine still sucks, but my moderately deep (46mm) wheels helps me be more effective pack fodder.
Beg to differ. Just not having a water bottle on your bike gives you about 60% of the aero advantage of deep aero wheels, so if you can tell me that you can tell the diffference between running a crit with and without a water bottle, then I'll believe you that aero wheels make a difference.
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Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1