I totally agree. But then again I’m a total Sony fan boy – after Canon & Panasonic (good camera) I went for then NEX 5n, then the 7, then an A7, then a A7r. Now I’ve upgraded to the A7m2 and (two) plus lenses.
As a user of a Leica M9 am really considering the idea of switching to Sony a7mii or a7rii. Just guessing which one would be better for my old lenses. The SL would be favolous but at this moment no way
Think twice before going from M9 to any other camera. It is a completly different experience shooting with a rangefinder. Yo may miss that once you make the switch. However, The A7 series are much more affordable and your M mount lenses will work like a champ on the A7 with the proper adapter.
For me, I am 100% into the Sony system now. I still have an F6 and miss shooting rangefinder cameras now and then. But, hey. I’m happy with my choice.