Survey Scams  

Has anyone tried those survey places that say they pay you money to take survey's, and then the survey's turn out to be just signing up for things, and you have to sign up for things that cost money or you do not get "paid". I never went all the way through them, because I am not signing up for anything or paying for anything. I answer no to all the questions and then I always get to a page where it says "you must answer yes to at least 1 question" meaning you must sign up for at least 1 thing. Thats where I always stop.
I was just wondering if anyone actually went all the way through and received anything for it? They always say they are going to send you a $500 gift card to Target, or a $500 gift card to Red Lobster or a design er hand bag just to name a few.