Well, since I have a CNC I really won't need a 3d printer to make parts for the machine, and also shouldn't need to buy any. I think the only expenses I would have are the hot end and whatever proprietary parts I can't machine out of steel, aluminum, carbon fiber, or HDPE. I do see an advantage of getting familiar with 3d printers as a whole, though. The physical movement and accuracy are all familiar to me, only the actual extrusion and bed would be the new part. Seems I have far to go!

To answer Werby, I'm not a fan of the relatively small stage area of the delta style machines and also their lack of accuracy at the corners. Not to mention they are physically very tall. I see a cube printer with a 600mm³ stage or so.