In my mind, a facebook app would be part of a wider strategy, such as integrating your external service into facebook to drive additional use of the core servic

In my mind, a facebook app would be part of a wider strategy, such as integrating your external service into facebook to drive additional use of the core service. It didn't seem like many facebook apps on their own made that much sense, especially for VCs. I mean, they basically allow you to spread your ads across a small portion of facebook's site. As a business model for a couple dudes, fine, but as a model to throw millions of bucks on, not so sure there. Unless VCs were hoping facebook would acquire them, which it doesn't need to to benefit from them, so why would it?