i am a teenager and i love to snowmobile, i am looking for a new one. i had a 1988 polaris trail indy 488 fan cooled. and i was wondering if fan cooled is better because its so much more simple or if liquid is so much better because its more advanced? (also i would like a newer sled like a polaris pro-x 440 and the only fan cooled sleds i can find are old junkers, my dad says i should get a fan because they are so simple and there is not as much to go wrong.) i need some help