Recently I received a notice in the mail from the Arizona Diamondbacks inviting me to renew my season tickets for the 2008 season. I had debated whether to take advantage of the team’s offer to renew now or to wait until after the 2007 season concluded and renew. It was not so much a question of whether I would renew my tickets or not; that was definitely a given. The real question was whether the incentive was enough to justify spending...