tnlogger ,id say it would be like a circular saw blade,you just throw it away.Do you resharpen circular saw blades.you can buy carbide blade for circular saws for about $5
D,I have a Turner bandmill with car tires which means you never break blades.Like Deadhead said,he sharpened his so many time they can't be sharpened anymore because there so narrow there hitting the guides.
Also I don't really want to buy a sharpener and spend my time sharpening blades either.
I'll get one and see if its any good and I'll give my review on it.
Also I all ready have a bunch of reguler blades for back up.