I'll start by saying that I am not an instructor but happen to know one pretty well.
It's been said before. Just because the class time is cut in half does not mean the work is. I am a firm believer in "you pay for what you get." I am not saying the "cheap ones" or maybe I should say less expensive ones to be fair, are any less of a class. From my own experiences and the people I have spoken with, the ones that elected to take the less expensive class have very similar complaints. The ones who took the more expensive class have the same compliments. Does this make it a rule? Nope but it is what I have to go on.
I understand the workload that goes in to being an instructor for the before and after portion of a class, not just what the student sees in the middle. Range fees, classroom fees, instructor certification, Notary, business fees and taxes, printed materials, the list goes on and one and on. With that said, I could see fees reduced a little for those instructors that provide lunch, snacks and drinks if those will not be provided, or no lunch and half the amount of water and snacks.
You can take my $.02 and use that towards the next CHL renewal class.