One difference with Potter is that Potter fans will always dream of being able to enter the Wizarding World. Universal did that by building locations we wanted to visit. I’ll be curious to see how the EU land works since it’s not an iconic HP setting.
Star Wars missed this by not building a place we knew existed or wanted to visit.
TSL missed this because no one watches Toy Story and desperately dreams of visiting Andy’s back yard.
Pandora was arguably the best attempt but for whatever reason, it still doesn’t seem to be the same smash hit as WWoHP. I think WWoHP is, perhaps, even more unique because it had sights, sounds, smells, and tastes we all wanted to experience. Pandora just doesn’t provide that level of sensory experience (but it’s close). When you literally create a land where people even want to visit your gift shops because they read about them or saw them in the source material, it’s going to print money. How do you compete with Honeydukes?
SWGE would probably be more popular if they’d built Tatooine and that has some built in retail in the source material.