I always do surveys. Even those you get at stores. I will do them on-line from my phone the minute I get them and put in my receipt ID number and in a few minutes I could get anything from a free cup of coffee to a 'buy-one-get-one-free' sump'n. But that's not really why I do them - its about provide honest feedback that the company can use to make the product better.
To that point I did one for this site and I got to choose 1 of 3 'gifts'.
Sorry Wayne, but I don't do weight loss pills, e-sigs or facial cream to do away with my wrinkles - my wrinkles are hard fought remnants of smiles, frowns and sun...but I get the idea of the gift and appreciate the fact that each gift has 'buy-again' potential.
How about another wrench, light or T-shirt?