I would love to know what the ratio of people who buy individual tickets vs the add-on combo tickets is.
I would think the water parks add-on is probably more popular. But there are a lot of folks for whom the 1 day ticket is cheaper. If you are buying a hopper ticket for a week, and only planning on doing 1 water park day, generally it's a better option to get the 1 day ticket.
And of course, there are tons of Florida residents as well (thought I know there are often discounted FL tickets and FL resident season passes for regulars). And of course off-property guests for whom Disney is just one part of a larger vacation.
And no, people are not vacationing just for the water parks. But I just don't like the idea, that sometimes folks on the forums bring up, that somehow the smaller attractions (basically anything other than the main 4 parks) don't need updates, or upgrades, or need to stay relevant or offer a good quality product/value for their customers. Whether I pay $56 for a water park ticket, $15 for a round of mini golf at Winter Summerland (and Santa's 1997 PC), or $99 for a day at the MK, it should be a good quality product for my money, and has nothing to do with what is going on elsewhere in the "world".
So, yes, I'm all for any upgrades or additions to the water parks. But we know that's not happening.