I'd just buy a tractor and a snow plow for it. $500-1,000 and be done with it.

If you mean like a garden/lawn tractor, the one I have now is a top of the line Husqvarna and I think it is 700 pounds. They make a plow for it, which is only another $500 but it is a two wheeled drive tractor and even with snow chains and wheel weights for the tires they are rumored to get stuck pretty easy, although I never tried it. That would make for the cheapest solution and I suppose I could give it a try at a risk of $500 and see how it goes. We only get super deep snow here every few years where I would really worry a lot and everything under 6 inches would probably be fine, and you can always plow periodically throughout a storm when you expect more.

DizingsS2K makes a good recommendation too, I was quoted $300 a year for a plow service and it would take 20 years at that price before I would spend the same on even a quad with a plow. I expect to be dead in 30.

@ZSAK super cool!

We tried a plow on our Cub Cadet mower several years back, it sucked. Anything more than 2-3 inches and it just couldn't handle it.

$300 for plow service is cheap, I'd go that route for sure.

Yeah, I love the plow service. Works well for me as I have two young kids at home, so I'm short on time to screw around with snow, others situations may be different.