As noted it gives you choices and options going forward though there are some things to be mindful of such as the title being the same, UY, even home resort, etc. It is a major advantage but NOT one worth paying a lot more for. Thus buying multiple smaller packages resale for the sake of having this advantage is almost never (possibly never) worth paying the extra per point and closing costs either retail or resale. And it's not worth it to buy retail simply for that purpose rather than buying resale giving up that option. Buying a single resort resale you'll get the best deal in almost every circumstance by buying the largest contract size possible assuming you control for the other variables of points availability and dues costs. It works best for those adding on to existing contracts, those buying newly opened resorts that are not available resale more cheaply (like BLT) and those buying smaller contracts where buying retail isn't that much difference in cost over resale.