What these guys did couldn't really have been a scam, though...they fixed the driveway for the price I was quoted, you know? I mean beyond that I sort of don't care what there story is. It looks a lot better.

In that link it seems like the defining factor is a pricejack once they get started. They stuck to their price ($75), and hacked away all weeds, straighteneded edges, top and bottom and resurfaced (as well as filling in a hole).

I dunno, Grant Sr, when we lived with him, was offered something similar for way more and went with it and liked the results. In both cases the original bigger job was clearly visible down the street. *shrug*