its why I have an up to 6 hour package which alleviates setting time during speeches toasts etc.

If you were employed as a cashier, yet not a single customer came through your register all day - do you think you're employer should forego paying your daily wages?
Book your downtime with a similar expectation.

I say we go back to the "DJ Is Like A Secretary" analogy.
:sqerr: 
The way I look at it. People are renting 2 things. My equipment and my time. If I was able to rent my equipment and or my time during this "stand around time, I'd have no problem not charging them for it.
Anytime you rent anything or anyone's service(legally), there is a set amount of minimum time due to the fact the the equipment or service won't be available to anyone else.
Would a rental car company let customers say, "I only want to rent the car to drive 4 hours and then drive it back tomorrow, so i only really need to rent it for 8 hours"
I can understand giving a deal like ray's and I certainly want to work with the customer. But it's just not practical for a customer to not expect to be charged while the equipment and service has become "unrentable" due to their requirements.