What bothers me are people thinking that strollers are for lazy people. I think it's the opposite. When we went to WDW last fall, we wanted to do everything. We used to double stroller as more of a wagon, to haul the kids (and our stuff) from one area to another, quickly. Heck, even on the
DCL, we never once used the elevator - too much time, and taking the stairs is a great way to burn off all of those extra calories.
If you want to stroll, take breaks, etc., fine - that would drive me nuts. Therefore, I rent a stroller so I don't overtax the little ones, getting in as much as possible.