I don't know about these sweeps, but I can understand entering sweeps that have different level prizes. I often enter not for the grand prize, but 1st or2nd, etc. I am sure that most people do. If I win a grand prize and can't use, I decline and for the most part, they pick another winner. I won a trip to the Super Bowl and declined, they picked another winner, so my loss was a gain for someone. And if you feel that way it's almost like saying, I entered for the grand prize for 1,000, but won the 1st prize for $500, so I won't accept the $500. (not likely)