The atvs/utvs with tracks are for sure expensive, but they are pretty dang capable. A number of friends have them around here and they don't even blink at drifts or deep snow. Plus you could haul quite a bit with them. They are easy to put on. Again it is the cost that is a big deal.
I don't know much about snow machines, but I doubt they'd do real well dragging a bull elk around. Maybe on a groomed packed trail.
If you just needed to get in and out you could buy a real nice snow machine for less than the cost of just tracks for an atv.
