That's the direction I've gone with the grinder. I have a tormek, but it has been relegated to carving tools and japanese tools that need major work.
Unless something from this discussion changes, I think I'm zeroed in on the 623E. I was hoping there would be a couple of other US made options, but it looks like dayton's (by the price) are overseas, as are wilton and palmgren. I don't see any other *good* 6" grinders, good in the sense as a one-time purchase with a proven history.