I hate to come in here and throw facts around, when I dont really know the facts.... But the Pro RMK out sold every other sled model for a year... or 3 in 2011-2013, I don't remember which year, or if it was actually all 3 years in a row... point being mountain sleds have the potential to be where the money is at.
Statistically I have no idea where numbers are for parts, gear, accesories, etc between what trail riders spend and what mountain riders spend, but I think it would be a safe bet to say mountain riders spend exponentially more on all the above. And lets not forget all the money mountain riders spend driving to their destination, and the lodging and food there and along the way.
I realize that sled registration numbers are wayyyyy higher in the midwest, north, and northeast, but I would definitely think that the "big money" is in the mountain segment, if you can own it... And yammi just doesnt get that because of how tiny of a player they have been in it for the last 10 years.