Other than the DW falling, sounds like you had a nice time. Glad to hear you are considering coming back
If you have some time to spend in the UP, I would suggest Tahquamenon falls SP, Porcupine MTN SP (union bay CG) and Fort Wilkins SP in copper harbor. All are very nice and have plenty to do.
I too just love Traverse City. Being only a few hour drive, we try to get up there at least once a year. Theres just something about driving in on US31 and seeing the Bay's off in the distance that gets me every time.
Thanks for the UP-date