Why are people so pessimistic? Is it just a mob mentality where people blindly agree with others and go on a witch hunt? The NSA and other people are tracking everything for more nefarious purposes. If Google wants to make money off us, I really don't care anymore. I love my Android and Google services. It makes my life exponentially better. I love using things like Google Nav and Maps when I'm out of town - that alone makes it worth things.
If they want to create a better user experience by tracking things, I'd say I'd prefer Google to do that above anyone else. They know how to make the experience transparent but meaningful to end users. If they don't do it, someone else will. So we might as well deal with it or stop using all their services.