Coming from the other Amp Modeling devices, like Helix, Pod Go and Headrush, I also decided to go with the Kemper Stage at this point.
The reasoning behind that is simple. I want to play guitar. The sounds you can produce are also there on the other devices, the problem is that it takes a vast amount of time.
I have my Kemper stage for 3 days now.
Took me about an hour to get my sounds going and I've been actually practicing guitar for the rest of the time.
Sure the "competition" is there, but in the end, we all benefit from it, since Kemper is also still evolving.
Quite frankly I don't really care which new amps might be coming in the other devices.
I just want a device, that still sounds good in 10 Years
Just my 2 cents