Ask HN: Facebook Connect vs. Own Database

Hi, I am wondering if it is even conceivable to create a new app with the intent of it becoming big and being sold eventually and have the only method of logging in being Facebook Connect?

I mean would the fact that all of the users' initial data being Facebook and not technically owned by the app create a kind of scarlet letter for the app, regardless of how big it becomes or other data points it may create around the Facebook Connect data?

Does anyone know of a pure Facebook Connect app acquisition?