I can get by with just my little snow blower. I'll call the 1715 a bonus!
Because my driveway is gravel, I don't bother removing the snow unless my wife gets stuck, which is usually 4+ inches of snowfall. We drive over small snowfalls and get a good snow pack so I'm not blowing gravel all over the lawn. I hate that sound of a rock blowing through the mower deck.
Last year, I got the snow blower out ONCE! No need to spend any money on something that just won't get much use. That's my two cents, anyhow.