...theyre very pricy. it would be around $205.00
But in my opinion, worth every penny.
I know your question was about the Nils Power Auger, but I thought I'd offer my 2-cents about the Nils brand just the same. The way I see it, the way my Nils cuts, I don't need a power auger.
I have the Nils hand auger. I was a little skeptical at first with the fold-in-half design. I thought it wouldn't hold up to the rigors of cranking and would be flimsy but was I wrong. It cuts like no other auger that I've used. Drilling a hole is nearly effortless. I used to have to take a few breaks while drilling with my jiffy. With my Nils, I can drill a hole through 16" in less than 2 minutes. (maybe less if I'm in a hurry).
http://www.youtube.com/watch?v=QaVx-GMMdsc