Note to the Mini Maintainer people: I like web sites that have at least a town and state so I don't have to do a reverse area code look-up. A real address is better. Also, give me some idea of cost. At least a "MSRP". Cost is as important a specification as any dimension or weight.
On topic: I'll be using a box blade for my driveway, but I have a problem I've not seen discussed on these threads: my driveway base is a thin layer of crusher run , then railroad ballast, then more crusher run. If I tear it up too much, the big rock comes up and will never go down again. So I'm working to find a source of screened crusher run so I can have a top layer of 1/2" rock and smaller/fines that I can re-work without tearing up the base.
Boxblad will be on a TNT, I don't see using the scarifiers for the above reasons. Once I get it right (again), I have used my landscape rake to tweak it. If it's beyond tweaking, it's box blade and possibly more gravel.
For the $s, I'd probably get a land plane before a rear blade, but just because of the other implements I have. I would have no other use for a rear blade.
Pete