Well I know at malls and shit like that, they'll give you 3 bucks for taking a survey on how much you like fuckin' Corn Nuts, and if it's a survey for smokes or condoms they give you 5-8 bucks.
There seems to be a lot to be made in the survey business actually, 40 bucks seems like a bit much but still...
Do you have a link or something? Hit me on PM if you don't want to post about it on the forum.