I agree with the foot pedal activated grinder so its not constantly running while your grabbing more of your mix.
However, we got a meat slicer last year and it is fantastic in cutting all sorts of stuff. Bread, Cheese, Black forest ham, pork belly (bacon), Jerky strips, fruit slices, vegetables, and so on. I don't use my stuffer that much anymore as I'm more of a burger patty guy.