I actually kinda like Ben 10. It's really not the most terrible thing ever. It's certainly no Galidor, at least.
Like others have mentioned, should make for some fun figures, at least. And some cool sets. What's-his-face's car should make for a cool model, at least.
This really is no different from LEGO producing Spongebob sets. We'll likely see a bunch of minifigs, and probably some set rehashes over time, but who cares? What matters is that they're signing on with a fairly lucrative license that should make them some good coin, which in turn will allow them to make more sets that we really