It eats away at nothing. A Value resort being built at Universal, again, is simply bad news for the string of budget hotels right outside Universal and on I-Drive. People aren't going to say "Hey, Universal has a Value Resort now. Let's forget about Disney and go to Universal instead."
How can you say that? I can assure you there will be English tourists that decide to stay at this resort instead of the ghetto values at WDW. And that will have Disney concerned. For years Disney has had the first shot at the English tourists wallets and now they don't due to Potter and now they will lose even more due to them being able to target another demographic.