Are you serious? They are giving you a free and awesome product and you find it annoying that they earn money marketing to you personally? But not annoyed enough to completely stop using their products....
1.) Not everybody thinks Google's products are so all-fired awesome across the board.
2.) Plenty of people find it very annoying to constantly be targeted by marketing everywhere they go. If it's free, you're the product - though that's not to say that simply paying for something protects you from abuse.
3.) Having a dig at someone for complaining about something but still using it is silly. Even if a given Google product is the best in its field, that doesn't necessarily make it the perfect solution.
Plus, there's the economic argument - if you've got to use Google whatever because you can't afford a paid alternative, you're essentially being made to participate in their marketing by not being able to buy your way out.
I'm not saying this is unique to Google, or that this is true across the board, of course, but it's not unreasonable in the slightest to be uncomfortable with the way they do business.