I don't recall that it says we can't book at other resorts. It does say that the home resort "edge" could be reduced to as little as 1 month (instead of the current 4 months). There is also legalese protecting DVC if a resort were to be destroyed. But, as with the whole program, a degree of trust has to be placed with Disney "to do the right thing". So, far that has worked out. When I'm not so tired, I'll try to read through once again.