Looking around lately in the bike shops for a good commuting bike and seems like the vast majority of commuting bikes are built around a 700c road tire. This doesn't really make any sense to me. In my mind, a 26" wheel is far more appropriate for the majority of commuters.

A 26" MTB wheelsize is more maneuverable. Smooth tires are no longer difficult to find for 26" MTB sized wheels. In fact, you can get really wide fat tires that can handle any city pothole type riding, plus it would be ooh so comfortable. And with a rear rack on a bike built for 26" MTB rims would mean a lower center of gravity. 26" tires and tubes are far more available than 700c tires and tubes, especially in developing countries. Better tires, more comfort, better for use with a rack. What's not to like? Can someone tell me why commuting bikes are so hard to find commuting bikes w/ 26" wheels?