I've never used it as a fundraiser but as a consumer I wouldn't be interested in buying it. What you're really selling is a $20 digital entertainment package and the "ticket" is a bonus for an order however since it's a sweepstakes, people can request a free "ticket" without making a purchase if they know how. This is from their website, "The entertainment package allows you to download over 30 songs from up-and- coming artists from all different genres of music". It goes on to list 14 artists and states that, "not all artists and songs are featured in each package". The company looks great and you make good money for each sale but it's just a product I'm not interested in.
We used to do a lottery and made great money with it but it was a lot of work and we had to be really careful to comply with all the state requirements. The tickets sold for $10 each and at times they were tough to sell.