I think people would be more willing to buy tickets if they were a little cheaper say $3 each or 2/$5. I think you would actually make more money buy selling more ticket at a cheaper price. Make sure you tell people who don't know that this is quality fabric you have used. People don't understand what goes into a quilt.
I know I just bought 6/$5 from the sr. cit. ctr. It was beautiful with appliqued heart and echo quilting. The raffle hasn't gone off yet. I have bought chances from them for years, figure it's about my time.lol