Actually,
I look upon the ability to sell as a plus. If you should be in a position where you do need some cash, you can sell. It is not a permanent decision. You could then buy a resale later. Will you loose out on the deal? well if your able to get a few vacations before you sell, you might come out just fine. But you never know, with right-sizing, (cough, cough) or whatever when those emergencies may happen, you have an option as a DVC owner. DVC can be turned into cash if needed. And, if needed just for one year, you can rent your points. Check out the rent board.
Just a thought. Take your time with your decision, there's no rush. You'll be all the happier once you finally decide.