The mentality of the masses, is more horsepower equals more fun. Never mind it cost more, weighs more, sucks more juice, and is more expensive to fix.
Let me just say that I had a friend drive a skiddoodler 550 fan for 3 years and it never fouled a plug, used about the same gas as any of the 4 strokes save for my 660 cats which nothing touches, and had no problems keeping up, or leading and went over deep snow very well and carved with this lard ask, in excess of 300 lbs, just dandy.
It opened my eyes to a fan 550 sled. My onlyest complaint was at start up the thing smoked and took 5 years off my life in the trailer. Otherwise it was a fine sled, light to move around is great for someone who doesn't need to do lake racing or simply doesn't want to sink enough money to buy a house, in a sled.
I wish you would POST who the bone head was that did the "sold it yesterday" thing on you...so you can save others on here from being fried to a crisp.