This is a good idea if:
1) You have a short commute
2) You don't have to invest any money into a beater with a heater
3) You're able to cover the tax, title and registration fees for selling the vehicle in the spring
4) You have the time to properly check over said beater to ensure it's safe and not a danger to yourself or anyone else on the road.
This is a bad idea if:
1) You work 12 hour days and don't feel like working in your garage on meantime transportation
2) After you work 12 hour days you actually want to spend time with your family
3) You drive a lot and can't afford to have a beater break down on you and jeopardize your safety or a potential client meeting
4) If your not a good gambler: i.e. you invest too much into a junk to keep it reliable.
5) If you don't like spending the time to look and haggle with people to talk them down as much as possible so you may actually break even in the spring: then buying old cars is not for you.
6) If you don't have a spare 2500 laying around with nothing else to spend it on
??? you can pick up a 92-98ish jeep with less than 140k for nothing... the I6 motor is unbeatable and the design is so simple any repair can be done in no time?? ... i have a 30 mile round trip to school in NYC traffic and a 50 mile round trip to work (which i am doing right now (co-op program at school) and have never had any major problems with beaters ... plus these jeep parts are cheap as dirt and many things can be found used.... i can see it being a bad idea if your not mechanically inclined
plus money saved on insurance alone is worth it ...idk....just my .02 ...