The main reason I decided against the Surface Ergonomic and got another Sculpt is the fixed numpad on the Surface - I used my old Apple wired keyboard for a little bit while my old Sculpt was broken and realised that I actually find having the Magic Trackpad next to the Sculpt with no numpad very ergonomic, and having to move my right hand further to reach the trackpad is a bit annoying. Maybe a non issue for you.