if it's like the "free ipod" stuff, talk abtou SPAM emails.
i used a made up yahoo account to try for that once, and that email gets 50+ a day into the inbox, that i can't even mark as spam LOL
good thing i made up an account for that, so i just closed it. waste of time.
worst part is they all ask for your full street address and stuff. i dont like giving that out, and decided it wasnt worth the risk