Sure that works if you have the extra to spend right now. If you're budget down to the penny like many are, that will not work, you can't justify the extra hundreds for a family of 4.
While, once the options are in front of you, it is simple - I think this is going to be a nightmare at checkin for quite a while, because like all of us here, many will get there, and then want to figure out the cheapest way - can you just see all the CMs with their calculators out while Mr. and Mrs Mom and Dad say "Well what if we did this...well, what about this way...." *grin*
As to the unlimited options - I took it (perhaps incorrectly) that you buy the extras like the waterparks "one at a time" - as in you have to pick? We don't do the waterparks usually, but I'd like to try DQ, and we do PI often - although I would not spend extra for the entrance there for the most part.
*shrug* as long as the current PHs will not suddenly "go bad", I am just going to order one from my Citibank Rewards, and get 3 more of whatever when I need 'em I guess. I do wonder at the lack of
DVC 10% off like with UPHs - they'll turn around and say that the AP is our new discount probably, but whereas the UPH was a viable option for everyone, the AP is not. Although the base tickets could easily make it up, but I for one could not be stuck to "one park per day".

I'm too flighty for that! *wink*