I think the Playbill or a windowcard should be enough. I don't think anything that a show sells is a "MUST HAVE"-most of it is junk made for hoarders. Theatre fans who buy too much of that garbage live in houses and apartments that look like Sanford and Son. Less is more, trust me.
"The sexual energy between the mother and son really concerns me!"-random woman behind me at Next to Normal
"I want to meet him after and bang him!"-random woman who exposed her breasts at Rock of Ages, referring to James Carpinello