I hear ya', Don!

And, once you get into large room volumes, the stage sound from the band is still only a small fraction of what the audience hears, so separate amps for the drums, bass, etc. is only really going to improve things for those on stage or REAL close to it. Seems like an awful lot of gear for something so few would appreciate (or even want!).

Mind you, if, as there have been a few posts about recently, there are some REAL players playing in with the arranger, a bass player, a frisky guitarist, even a drummer locking to the click (or just playing with your LH bass), having those Parts split out and sent to rigs on stage can go a LONG way towards making them feel comfortable on stage, and them not have to make major adjustments to their playing techniques. I have on occasion used a bass rig for my LH, but I prefer not to if I can help it!

I have noticed, though, that if you DO split out those bass heavy parts, your need for YOUR on stage monitoring goes down radically. Other than the bass and drums, 99% of what the 'keyboard player' plays has little low end, and tiny little monitors suffice really well..!