if you can get a repairmaster warranty on the m1, do it. I bought a new one in 5/03, and it just needed a transport gear replaced. woulda been at least 250 without the repairmaster, but it was free. 550 is a great price for a great deck. as long as it has all the new paperwork with it, you should be able to buy the warranty from amdig, or another vendor. So far, I've gotten about 600 in work done, for 200 bucks laid out for extended warranties on two decks.