In reply to David Anderson.

Customizer is simply boring and too hidden for some users, they forget it is there.
I, as an advanced user, really prefer to have all the configurations together in a complex Theme Options page rather that having to look for the cosmetic thingies in the customizer.
And probably this same idea is going through several other devs. In example: I never configured widgets from the customizer. Even so, we must recognize this is a very well coded feature of WordPress.

Maybe it's a good question for another poll, for Jeff:
- How many users setup theme options using the Customizer?
- If you can chooose, do you prefer to use themes with support for Customizer? "Yes" / "No" / Don't care as long as the theme is the best for the project".