Interesting -- I'll have to give this some thought, as I do have the 3rd function kit installed.
A blade would certainly be sufficient for my relatively short driveway, but the driveway is on an 1.25 mile gravel road that is not state maintained. I was thinking that a snow blower, even a slow one, would be much more efficient than a blade over such a distance. I certainly could be wrong, as I do not have any real-world experience with either yet.
Another factor is that I'm in north-central Virginia, where we only get a heavy snow every 3-4 years. Maybe we should just stock up on food and wait it out.