You're not crazy at all! My fiance and I did this last Oct. I had already spent a total of 14 days @ WDW in 2009, over the course of 2 trips, but he wasnt with me on either of them. So we saw good air fare, and on a whim we went to SSR for 1 night. Got the 6am flight down, we were @ Epcot before noon. Got the 9pm flight home the next night.