Well, I hope I don't get bashed but I went with the '09 Dragon 800. My deal on the "cheap" 08 Nytro fell through so it came down to what sled I felt would fit my needs. prices were all comparable between the Nytro, Dragon, and 800R.
I think each of these sleds has their faults and frankly, I was sick of the few faults the Yamaha had that they refuse to fix at the factory level. Specifically the crappy skis and the sloppy front end steering. The front end heavy feeling does suck but I would deal with it.
I went with the Dragon because I don't think it will have those issues. I do understand that the milage will suck, the 2 smoke oil smells and is expensive, and the motor is not nearly as fun as the 4 stroke. But, I do think it will be a more comfortable fun riding sled that I don't have to "muscle" around all day.
I am going to keep the Nitrous Apex as a spare sled...use it for some lake racing and loan it out to friends without sleds.