i am looking closely at amp vs sims.
I was chatting with someone recently, though can't vouch for the accuracy of this statement, but he said...
"""Oh, sure, they all have Marshall, Fender and Orange on stage, but it's all for show ... nobody does it that way any more. It's all done with amp and cab simulators through the main PA."""
It's also the way I work, but then as I'm sometimes doing straight piano and sometimes other keys, the effects of the amp+cab are inconvenient. Sometimes I want clean piano, sometimes over-driven electric, sometimes vibes, etc..
My mixer has amp+cab modelling on some inputs.
I have to say that, as a small jazz combo, mostly the piano, guitar and bass use their own amps and the horn section are au naturel.