In Daly City, CA Curtis Woods' pro shop along with Classic Bowling Center is having a demo day on November 11th, 2010 from 3PM-7PM and the cost is $10.  That is refundable with the purchase of a Brunswick ball.  

Contact Curtis Woods at 650 878 8577 if you are interested in it.

I am not affliated with them.  I received a flyer and I am just passing along the information.