To those trying to purchase, I know it' no fun that your deals aren't going through. I guess one just needs to offer a little higher price, and the buyback will be avoided. I'ts still a great deal. Buybacks also help keep the value higher for the seller, which may be of value after your purchase.
I think it's great for current members who may wish to add on for Disney to buy back points. Disney can offer additional smaller add-ons, that wouldn't be available on the resale market. The demand for add-ons is certainly there, seems like a great idea.
Just a thought.