I sharpen my own. I do have a bit of a problem getting a good, clean edge, tho. I try angle grinding, bench grinding, files, etc. I really need a jig to hold them at the right angle, I think.
Good idea having 2 sets of blades! I didn't think of that, Now I need another set of blades!I always have. I have all the stuff so why spend $10 to get some body to do the exact same thing. I have 2 sets of blades. One year I have 1 pair on them and the next I use the other pair sharpened. Then after 4 years they are trash. So I personally would rather sharpen mine than spend money