I'm part of the 22%. Two reasons:
1. iOS 7 looks like garbage compared to iOS 6, and the basic GUI changes suck (I like the feature additions but the bevel-less "buttons" are pathetically non-intuitive and have lousy actionable areas).
2. I have an iPhone 4. It will slow down with iOS 7. I already put up with a slowdown from iOS 6, compared to the phone when first bought/used.
My use of iOS 7 will be against my preference, on a newiPad, if I can afford to spend my...