I own a shopsmith Mark V and teh accessory stand. I have a 6X48 belt sander on the accessory stand and mostly use the the Mark V in drill press mode. I have made a few thousand dollars drilling aluminum for cnc machines with the shop smith. Variable speed, moveable table with gret spots on it to clamp parts, and horizontal drilling make it excellent. That sander is awesome for metal as well. Will I trade any stationary tools for a shopsmith - not many - but I am not giving up my shopsmith (until I buy a knee mill). I also have the big scroll saw from shopsmith and it is nice enough for me.
I do need a Mark V table for mine though.