Well, a good reason to use email. I'm quite happy with the spam filtering on Google Apps and have no particular reason to go through the trouble of setting up my own server.
But are you happy with Google data-mining your email to deliver custom ads? (Of course, if you have an adblocker installed you won't see them, but the principle holds.)
Yes I am happy for Google to do that. You phrase the question as if people won't have even thought about it that way. I think it's a trade where I come off the best.
I'm not much of a consumer. I don't buy that much stuff. My value to advertisers is probably a lot less than they think it is so I'm currently doing fairly well from selling my profile in return for free services.
