There's a fella locally that does a great job. Havent used him myself but have heard guys say the blades were as good as new and lasted longer after he got done.
I finally broke down this year and bought a new blade for my Eskimo auger. I figure I was due as the old one had it's 25 year anniversary this year. Should be good for another 25 years now!!! Maybe 50 years seeing when I opened the package it came with two blades. Slammer!!!