The wood in itself won't justify the mini. But some of the other work that I come across, sidewalk removal and repair, small backfilling jobs etc. would also offset the cost.
Edit: to add a little more to this, anything else I will buy will just bo fo that purpose as near as I cn figure. If I buy a Lewis winch I will easily have $1k wrapped up in it, and it's a very limeted use tool. If I get a winch on the truck, a lot more is wraped up. It will have to be large enough to pull my truck out, as it will get stuck moving it around to position for pulls, and I will have to be able to mount it on the front and back (when I get stuck) and will most likely require another battery as well. A powered wheelbarrow is multi use, but I think it would be limited use in this aplication.