For what it is worth...
Every sled has thier issues... as a matter of fact they are all junk and will let you down at one time or another. Why do you see more doos on the hill? It is because they sold more of them then the other manufacturers. Why do people defend thier purchase? Because even if they feel they made a mistake, they do not want to admit it, especially if they are trying to resell it. In my personal experience, I am riding a Cat because the local dealer pissed me off, and I'm glad he did - my M1000 has treated me very well, as has my wife's M8. I'll also be the first person to say that if you can find a good servicing dealer buy the machine from there. I actually just buy from a dealer who can provide me with a decent deal on parts after the sale, because there isn't one in my area who can set up a sled or service it worth a chit... If there isn't a decent dealer in your area, buy a shop manual, and purchase the sled where you can get a decent deal on both the sled and after sale parts - at least it takes away from the sting of spending $12 - $15K and getting a sled that simply had the skis bolted on it, with no attention to details...