Do you? I get unsolicited postal mail, but it's at least well targeted and often relevant to me. Sure I toss the credit card offers, but if I were in the market for a credit card, the ones that I'm getting offered are probably the ones I'd consider.

Yes but nowhere near 1 cent per email, a sum that is still very little for legitimate users (especially considering the high likelihood of getting it back), but much higher than what current spammers pay.