Worth it?

Anyone ever noticed the receipts you get at Target or Home Depot that say "Enter for a chance to win a $5000 gift card! Share your opinion with us!". I have a stack of about 7 receipts waiting for me to be suckered into completing their online surveys. I hope I'm the only person willing to waste their time and enter... Maybe I'll be extra nice while filling it out and that'll help? Man think of all the things I could do with $5000...