One of the most disappointing gigs I've ever been to was a recent My Vitriol gig, where they took this all too far, had line6 variaxs going through the PA, no back line at all, bassist not there, just on a laptop, and the drummer was using an electric kit...
Now I'm no Luddite, but it was just too much (or too little?) and there was no weight to it, you didn't feel like you were at a rock gig at all, and it sucked all the atmosphere out of it, it all sounded too polite... I wanna avoid going that far.
I deffo wanna keep myself with a back line, and I'm hoping an frfr cab of some kind would meet all my needs.