I think the problem with making the 19th hole a separate price is that many enjoy going for the atmosphere but wouldn’t pay extra for that. I am likely one of those. I like to go to the CC and probably go 3 out of the 4 nights. I’ll have a few drinks when I go but generally no food. So if it becomes a $50 or $100 upcharge, I would probably opt out and miss that part of the event.
Don’t forget, a big source or WA income is the booths at the 19th hole. Remove half (or more) of the field for opting out of the 19th hole and those booths lose value – and perhaps many of the vendors opt out knowing there are fewer coming to it.
I think it’s better to look at it as a package. If the package doesn’t fit the golfer then I agree, you shouldn’t come. There may be another tournament with less after golf stuff going on so it won’t effect the price as much.