In my opinion I'd rather have Cars Land than Potter Land. Potter is cold, dark and English. Cars is warm, bright and American. I'm not much of a fan for either franchise so that bias is not there. I'd rather travel in an automobile than a horse, broom or bird thing. I'd rather have a rootbeer float with a cheeseburger than candy and butterbeer.
As for the money involved, everyone was so happy that Potter brought in money to expand and refurbish things at the resorts. All the money did nothing to stop a ticket price increase. So that arguement is out.
I haven't wanted to go back to Disney in California for almost twenty years. I am now thinking about going back.