If you have gravel or anything but a paved surface, you will need the two stage gas powered snow blower
Smaller, electric models are the least expensive and offer smaller size for easy storage but they will not do any heavy snow removal.
Single stage gas powered snow blowers are great for paved walks and driveways that are small and receive small amounts of snow each winter. Prices go up to $1000.
Two stage gas powered snow blowers are the heavyweights...they throw deeper snow farther and cut a wider swath for less work but require motor maintenance, more storage space and an operator who can handle the power. Prices can exceed $2000.