I went through the same search not that long ago. In the end I bought "slightly" used (70 hours).
Here are some things to consider:
Dealers in the North East seem adverse to offering much in the way of discounts (beyond the factory programs). They also add on a freight charge (it has to get to the dealer somehow), and in most cases dealer set up and prep. On top of that, they will charge sales tax. Chappel won't charge tax (if you pick up the tractor in New Hampshire). If you take advantage of Kubota financing, you will have to insure the tractor through Kubota ( and that is fairly costly). In the end I bought a B2650 with ROP for $17,000.00 delivered to my home. It came equipped with a MMM, loader, rear wheel spacers, and a block heater. The seller is located in Suffield, CT. He seems to be in the business of buying and selling used Kubotas. I am pretty cynical about re-sellers, but this one was ok to deal with. Wouldn't budge on his price but seemed to be honest.
Good luck with you search!