I say do it. I went for the first time this past October and decided to go back for a second night during the week. It has one of the most addicting parade musics i have ever heard. I still am listening to the CD and singing "Boo to You" when ever I can.
Also, you can basically walk on any ride. My suggestion is to skip the first parade watch wishes and then watch all the families with small children leave the park. By the time the Second parade comes around there is no one left and you can find a spot with out much trouble. And don't miss the Headless Horseman's ride!
I am just hoping we will be lucky enough to catch it again this year on our honeymoon. No dates have been posted yet. (I know the week of Sept 14 is an iffy week)