Agree with LS mt125 owner!
I pursued the lowest cost dealer that had in-stock equipment available to sell, and that turned out to be a dealer further away than my original preferred choice. I believe most if not all the major tractor brands have established policies that a dealer should honor the warranty for the same brand tractor, no matter which dealer processed the original sale. If there are any dealers on TBN, they can comment to confirm or describe differences. Of course, this is a free country, and a dealer need not take your business. A dealer would be foolish to turn away business just because you bought from a different dealer... But, some dealers are small and susceptible to emotion. Warranty work is often paid by the manufacturer to the dealer in credits, not actual cash, so a dealer that doesn't move much volume may not need your warranty work (earning cash thru sales of other products), so turning you away out of spite isn't beyond the realm of possibilities... but any such dealers should get negative reviews on Google, Yelp, etc.
COVID has caused a lot of things to slip sideways. The nearest dealer isn't especially happy with me, as I'm in their territory but bought from a dealer that was further away. Unfortunately, the nearest dealer had no estimated delivery date for the tractor, while the further dealer that moves more volume received equipment within weeks and was ready to close the sale. Two months had past with the nearest dealer and still waiting on a tractor to be in-stock. Who to blame? Is the customer rotten for buying from a dealer further away, or is the manufacturer not doing the right thing by providing limited stock to the dealers that move the most merchandise, leaving the smaller dealers in a hard spot? I blame the Chinese Virus for all this madness. Hopefully, the nearest dealer won't carry a grudge into 2021 as COVID fades and sales return to normal. I'd much prefer to get any warranty work done nearby, versus making the long drive to the dealer that sold the tractor. Meanwhile, routine service checks and other non-warranty-work can be pursued at most any tractor mechanic shop, not just the dealership, and much of the routine maintenance you can perform yourself, and order parts online.
I view tractor dealerships a lot like automobile dealerships, although most are smaller in scale.