When I created the poll, it was based on two things:
1. Things I'd read in other threads, and
2. My personal expectations for dining outside of Disney.
In my mind, if I have a reservation, especially at a decent restaurant, I expect to be seated almost immediately. I would say a 10 - 15 minute wait would be long (but probably appropriate since they may have to clean tables, etc...). Anything over that would be "a long time."
So I purposely left out additional timespans. Maybe instead of "a long time," I should have said, "over 10 minutes." But I wanted to get a feel for people who were aggravated at their wait time (which seems to be a lot here on the boards- although not on this thread).