My suggestion would be visit a few. There's no doubt some are better than others, but you need to see what kind of vibe you get. Even the worst dealerships (for anything) will have their fans.
Although I didn't buy my tractor(bought used), West End Sales has been great. Service folks have helped me diagnose and repair stuff or they can do it. Excellent selection and folks.
Most recent visit, they found and cross referenced a bearing for an old disc I bought. Turns out it was an Allis Chalmers part which because they are also Massey were able to order on a regular stock order.