Resale doesn't limit you to only your home resort, that is an unfounded rumor that is not legally possible as I read the paperwork. It also doesn't currently limit you for AP discounts and other on property discounts/perks, I doubt it ever will but that could change. It does limit you from cruises and other cash exchanges which are more costly to do with points than cash anyway plus a small contract wouldn't give you any chances to use points for cruises and the like regardless. Personally if you can't buy enough points to consistently be usable for your family trips (I don't think 100 is with what you're looking at), I wouldn't buy. If you did buy, I think you should seriously consider more than 100 points. I'd rent and stay at BLT and/or VGF before you buy then decide what's best. Given your limitations quoted, 150-200 resale BLT points is likely a much better choice than 100 VGF points. You might also look at VWL given it's location. Or you could just save up and buy more at the Poly when it comes onboard. Another approach, likely the best for most in this situation, is to buy cheaper now resale then do an add on at the Poly when it comes available.