Hi.
For a band, ~$900 will get You a nice system if you're willing to use/haul old lead-sleds and perhaps stretch the budget a bit.
For a fixed location like a bar, going used isn't always an option for taxation reasons.
If You can write the purchase off in 3 years for example and re-sell, what's the point in losing that opportunity?
My "main" PA rig took forever to put together, but that's only because over here in Finland the used market was almost non-existant before the Behringer and alike "invasion" in the 90's. THAT dropped the prices on old quality gear for the benefit of those who care more about the quality than the weight and low price.
2*EV TL505's 250€
2*Ruski 18/12/2*1 mains 250€
2*old power amps ~200€ ("free" actually, but that's roughly their value)
Selection of mixing desks from 6 to 24 channels of different vintages, for different gig requirements ~200€ each.
Alesis Midiverb II for the desks that don't have FX 50€
Behringer 4 channel compressor ~100€
Assorted cables ~200€
In action (crappy fixed camcorder warning

):
Has hold it's own outside as well.
So, a hair more than $900, but in a location where beggars can't be choosers.
I'm sure that in a location where the availability of used gear is better, one can buy the eqvivalent of my rig for less than $900.
Since the OP is a comedian, we have no way of knowing what the situation in his location might or might not be.
Now don't get me wrong, I would just LOVE a nice analog/digital (desk/control) setup with optical snakes, 5K active mains and 10K active cardioid subs, but with our current gigging needs, that would just be a huge waste of money.
Not to mention the fact that I probably would not purchase a setup like that even if I had the money/need

.
Regards
Sam