[jancsika]

> [...] so they can show me advertisements relevant to my interests.

That's the benefit to you. The other is that the business model supports the Google services you use.

The perfunctory question is: what are the costs to you and everyone else?

The question that piques my interest: why do you assume there aren't costs, or that the costs are negligible? Why does your belief that an institution isn't evil or annoying mean you only do the first half of a cost/benefit analysis?

[CivilianZero]

Because all evidence I've seen is either sensationalized and based on emotion: "Oh no! My privacy!"

Or...I haven't seen any evidence there is a noticeable cost to me as a person?