Interesting topic and responses. I don't resent or criticize flip out/swivel displays however, I'm not really interested in them. Although there are some good comments for practical uses, I don't ever recall "I wish I had a swivel screen." I'm OK for laying in the dirt trying to get the low perspective shot. Maybe if I had it, I'd discover some good uses.
Aside from briefly checking focus for landscapes/moon shots with Live View, I never use it, I don't like it, I want to look through the view finder, I feel I can compose much better and more naturally. Would I give up LV? No, I want it, but just as a tool for what I mentioned. As for video on my 7D, I forget it exists.
I was thinking about all the hours I've spent behind a video camera (nothing fancy, just family stuff), and I almost never used the swivel screen. Probably less than 1%.
On the flip side (pun not intended) for point-and-shoot cameras, I almost never used the viewfinder on my S80--probably because it was not a real FOV. Now with my new S100 that doesn't even have a viewfinder, I care less. I'm happy with that big bright 3" screen.
It is what it is, probably some old school, and probably just old habits.