Psychological benefits to the Google model vs. the all-in-one model of Facebook?

I might use five or six Google products in a day and never really feel like I'm using "Google" at all. From the browser that I use, to my phone, to my email and YouTube (and now Google+)... I never technically leave the Google garden, but I'm never really consciously aware of this idea either.

With Facebook, everything they have to offer exists entirely on one site. This seems inherently boring and subconsciously unpleasant (one of the many reasons I never enjoyed using Google's iGoogle crap). I feel stagnant if I linger on facebook too long. And while I'm technically not doing significantly different things with Google products, the visual changes that go along with using a different site/product certainly seem to help remedy that stagnant feeling.

This seems like one of the least talked about benefits of Google+. However, given Google's recent announcement to retire the Blogger/Picasa brands and unify their products, they might not be aware of this phenomenon.

This might bother me more than some considering that I grew up using my parent's all-in-one AOL service and it driving me crazy.