[jimnotgym]

I have never used a top line modelling amp, like kemper or whatever...but I immediately play better through my tube amps than lower end digitals (Katana or whatever). It is dynamics as you say. Anyone would prefer to hear me play (as if) through a valve amp (vacuum tubes are called valves in Britain). Valve amps are still the default option for higher end enthusiast amps, although modeling is taking over with pros for convenience