Flutterby™! : I know it's a lot

I know it's a lot, but just once I'd like to have the event budget to be able to ask for an in-house working sound system. I'll hobble along with projector dongles and adapters and whatever, but it seems like the half-life of house sound for cheap halls is about six months from the last time the venue paid tons and tons of money to the AV shop, and nobody's been able to figure it out since.