None of the poll options applied for me. My poll option would have been : "don't have much choice but to vacation during the summer".
We don't particularily favor our summer trips, but now that kids are older ---in middle school thru college----we don't have much of a choice. They either can't miss school or if they do, miss way too much work. When they were little we used to love going mid Sept through mid December time period. My personal choice would be to visit during Jan or Feb because I hate the winters in the northeast and would love to be able to escape. But for now, school calendars dictate when we go.
We feel we've mastered the summer crowds/heat. We get up very early and go to the parks and stay until about noon. Then we leave...chill at the resort....plan a sit down meal in the heat of the day and return in the evening to the parks. We take full advantage of the FP system as well.
As for the incentives.....I think I probably would have planned a late August vacation vs an early Aug for the free dining. But then again, I'm thinking it may draw in even more crowds and I'm wondering how easy it would have been to make PS ?