Well, not the official, listed price.
In the olden days, I'd be able to get 50% off the ticket price, for certain days. Kaiser used to have tickets good for a day during a specific week (September).
I recall my college's student center selling tickets during the January break for 50% off.
That is how you sell off-season tickets at lower prices.
I agree that DL is not worth $100/person/day. I might never go again, since my relative got laid off in Burbank.
So, raising the prices won't make up for it.
I'd pay $60 max, on a lightly-attended day. And, no, I'm not buying an AP so I can go more than 10 times at less than $60/day.