In a perfect world, Disney would have realized that they can't keep up standards with the sheer numbers of people in the parks and put a lower cap on park capacity in order to preserve guest experience, preferably without jacking up prices to do it. Quality of experience over quantity of tickets sold would be nice.
Alas, that's not realistic in today's business word. I'm sure there are plenty of people who would pay for the privilege of lower-crowd Disney experiences (I suspect Disney realizes this and that's one of the reasons for all the hard-ticket offerings), but I don't think raising prices across the board is the solution to the crowd problem. What they really need to do is either lower capacity at each park so guests aren't crammed in like sardines, or expand each park with new offerings while holding the capacity where it is. That allow the same number of people that we have today, but it would spread them out over a bigger area.
Unfortunately, Disney guests have proven consistently that they'll wait in insane lines and put up with insane crowds, so until they see crowds adversely affecting the bottom line, they'll probably keep packing people in.