Marketing Idea for You Bands

I attended a recent concert where the band playing had a great marketing tool: They had posters up and flyers on the bar advertising that if you bought their CD and/or LP at the show you would receive a wristband to meet the band and have them sign it after. What a cool incentive for the fans and a good way for the band to make a stronger connection with fans. It may not work for every venue but I think it is a more constructive way to generate revenue and get fans than just standing at the merch tent after the show.