From my experience, alway get an electric starter, get one that runs on gas because you don't want to run over the extension cord while using the machine and do not get the top of the line model. If you have a problem, as I did last year with the piston, it may be too expensive to repair. I would also suggest checking out Sam's Club or Sear's (when it has a sale).
Finally, make sure you stay friendly with neighbors who have snow blowers, so that when yours or theirs breaks, there is a backup.