Sarcasm notwithstanding, you're making subjective statments when none of us have been to see the thing in person yet.
I trust HTF's sentiment that it'll blow DA out of the water. But I don't see that fact drawing me back nearly as much, again based on story.
Now, the general public is likely to eat it up regardless. But I do not believe it will feel the same way about this as it did about Potter. As someone else already pointed out, no one is going to cry tears of joy upon seeing the place. And aside from a few of the more outrageous groups, I do not see people dressing up or purchasing costumes from the land specifically. Thes statements can be applied to the land over and over.
In the end I honestly feel like our comparisons are always flawed, but here it just feels very stark for me. It can be as realistic and amazing as anything. But at the end of the day I'm gonna be hitting up a world I love. Star Wars is what I can see myself returning to many times if it's done right and that is far off. Pandora just isn't that kind of land for me.