Snowbikes don't have to be super expensive at all. I picked up a used 2013 TS for $2k last fall. Threw it on a 2012 YZ450 and racked up over 50 hours on it.....had the funnest winter of my life! To be fair I probably had another $1k wrapped up in the thermostat, engine shrouding, heated grips, pipe, lights, ect. Just start with a decent used FI 450 and have fun with it!