How popular is Chicago’s pre-Broadway run of the Monty Python-inspired musical Spamalot? Tickets are going for as much as $450 on ticket-swap web sites, and the best way to get a decent seat may actually be to get a pricey hotel room for the night, and then leave your ticket order in the hands of a professional concierge. “In its first seven-performance week, the show did $778,599 in business, selling virtually every seat.”