I went with 1550 and plan to keep doing a 3rd class medical. Now we have the Basic Med option. If I want to let my FAA medical expire I can still use my plane at 1550.
It has been a few years since our S7 got its AW; however, I followed the identical logic Phil did; although the basic med thing was only a gleam in anyone's eye at the time - still doing the Class III at present.
I do find the 1550 GW a very useful feature.
Dave S
Kitfox 7 Trigear (Flying since 2009)
912ULS Warp Drive