Some should!
Seriously though - no.....Although, I used to run a Thursday night event many moons ago, and I had to charge the punters £2.00, and the DJs £1.00 to cover the cost of the hall (Only one DJ moaned)
In hindsight though, maybe I should have charged £2.50, and not charged the DJs. But this was a time when some were at School, or on young people's low wages - It was a very low key event, just somat to do in the week.
Len