I've ordered many blades from both Texas Knifemakers and Jantz.
I've never gotten a really bad blade from either place, but the blades do vary in quality. Some need some extra grinding and polishing, others come with good grinding and near perfect mirror finish. Actually, I'm glad some blades needed some grinding and polishing. This got me started in making my own blades.
One other thing.... the small cheap blades are nice to have to experiment with. I've bought many kitchen blades and cheap hunting blades to experiment with epoxy, handle material, soldering, etc. I think they are good for learning and developing your skills. Better to screw up on a $4-$8 blade than on a $50 one, or one that you spent 10 hours on grinding and polishing yourself.
Carl