If you look at trimmers, how expandable are they down the road? Can you add neck reaming and neck turning to it, or do you have to buy another complete tool. IE; Hornady, have to buy the concentricity tool and add the outside neck kit to it, can't add to the trimmer, don't know if they peddle reamers for it, yet, although Forster reamer may work in them and others. With the Original long bed Forster, you get the collets for multiple size cases, need pilots, can add reamers, 3 way cutter and outside neck turning head. RCBS has the 3 way cutter, never checked out Redding or Lyman myself. Check out what accessories the trimmer you are looking at offers and accepts, and what it needs, and includes, to operate it. That's one line of thought on it.