Honestly, we find more fun in drawing for a prize then what the prize entails. If someone on the sales floor gets a red card, they get better prizes as its harder.
Sometimes the prizes are already picked out, other times we pick it. For example, a five dollar movie, you go select it. It's fun and motivating. Target struggles this time of year for red cards, we have to work harder to get them. The smallest prizes are candy bars, and that's okay. People want a reason to work harder.
Now I'm giving my store away, for those that know this, but oh well. My awesome red card lady takes the time to make raffles cool. Like thanksgiving, you pluck a feather from a turkey and it shows your prize. Christmas, you pluck the beard, valentine's, you pick a heart. So what if you win a bottle of soda, you could have received a high five instead.