I know exactly how you feel. I just mailed our closing documents in yesterday for our sale. It is bittersweet.
We just returned from a week at BLT, and that will be our last trip for awhile. Our family will be growing soon, and we were at the point of either needing to add more points (for a larger room) or go less often. It didn't seem worthwhile to pay the maintenance fees for several years just for one trip every couple years, and we didn't want to add-on.
Good luck with your decision, and the sales process. Ours has been very smooth. I would recommend the Timeshare Store.