Quick answer to a quick question: YES
But, remember you can only book at 11 months at a resort with points you own for that resort. Points can be combined at the 7 month mark. For example, if you own points at BWV and AKV, you can only use your AKV points to book AKV at 11 months.
Right. I know they can't be combined until the 7 month mark. We just wondered if it was easier to buy add ons from disney or resale?