How much would it cost and how long would it take to get towed from lets say Many Farms, AZ to the nearest dealer and have a repair done? I can tell you that is BFE reservation land and when you are riding through there in the middle of summer you seriously are not wanting a break down.
60 miles out of Panguich Utah on 4th of July weekend...on a Sunday. I fragged the clutch on my R1100RSL. Took the tow truck guy four hours to get out there and tow my wife and I to town.
Ended up renting the worlds worst U-Haul truck where we loaded up the bike, tied it down and drove 900 miles home.
It was still a great vacation!~

I don't limit myself on vacations. If the bike breaks, the bike breaks. If I have to trailer it home, so be it. Nothing says the bike has to be repaired on the road. The important things are to have a good time above all else.