Nah it's different Beast. The cost of going there and paying to get in is money into Real's pocket. I'm with Gnegneri on this, as a cule I don't see why any Barca fan, and possibly many others, would pay just to go and laugh at it. If the theme park was really good in terms of rides etc then maybe I'd consider it if I was in Madrid.
Any live experience can't be substituted by video's or picture .
u go to disney u don't substitute it by watching a documentary, same for diving,driving,sports , supporting a team in any sport.
Of course you want go Specifically for that neither do u specifically visit Orlando/Paris to go to Disneyland you are there already so you'll cut the ticket and go .
Madrid is the most visited city in Spain (official ) , Madrid alone gets around 7 Million visitors a year ( figure i have since i was working in Europe and dates back to 05 )
so from a business point of view you're just digging into 7/9 million people pockets a year . it's a guaranteed business plan