I'm a Kemperer, as you know, and I love it.
The difference in sound and feel is really tiny compared to a tube amp. The totally careful placing of an SM57 and/or ribbon mic has already been done in a studio (optimised per actual amp/speaker) and imprinted on the sound, so you're not at the mercy of whatever mic placement you get on the night or having to use third party IR and load boxes.
I play lots of covers across a bunch of genres, so the flexibility is really crucial. But I'm also a fan of always trying to have amazing amp tones and feel, and none of the modelers do that as well as Kemper. If the Kemper didn't exist I'd be using my Bogner and probably would have bought a Torpedo on your recommendation. 😎
In the future I think tube amps will stay around as long as there are still Gen X people walking around. After that who knows what entertainment will look like in 50 years.