I had used $100 to get 7,000 Hilton points earlier this year and figured the surveys, which seemed to be fewer and further between, would dry up. But yesterday I was able to do a survey for $7.50 that took me to $103 again so I redeemed it for another 7,000 Hilton points - which were in my account within minutes! Since I have never paid to stay in a Hilton Hotel, have had 4 free nights so far, and have 170,000 points built up to use on a long vacation (I'm retired so I need one) - I love programs like this :-)