Conserving them only slows the rate of rot. There's some truth to helping generate repeat business, but even with a 100% yearly rotation rate that's a 17 year

Conserving them only slows the rate of rot. There's some truth to helping generate repeat business, but even with a 100% yearly rotation rate that's a 17 year cycle to see everything without counting new additions. I doubt people are going to lose interest because two years prior to the new showing they could have traveled to Oklahoma City to view it.