I don't always agree with Wesker69, but in this topic, I totally second everything he's saying.
FF is comparatively lower tier, sure... but even with this price increase, I think GP will still get more bang for their buck given that the entire park is available to them (compare to the what, maybe 5 rides total that HHN has outside of the mazes?), way more scare zones (something else HHN lacks), and the ability to get more done.
It's been mentioned multiple times that HHN is so crowded, the average person can barely get half the event done, and 1.5 times the price. I fail to see how that's a bargain, even if those said mazes are incredible.
Once again, many posters here are coming from the point of view of a very dedicated haunt fan. Which is great, and of course we all have very passionate opinions. But fact of the matter is 80-90% of the people who attend these events are casual fans at best, where I'd say about half of them barely even know what's going on, they just want a night out.