Good point about the anticipated visitation numbers.
In 1988, the relatively new Philadelphia Area Consortium of Special Collections Libraries (PACSCL) - a group of 18 area collections - mounted a massive exhibition at the Historical Society of Pennsylvania with an attractive 266-page catalogue entitled Legacies of Genius. Anyone want to guess the visitation numbers of that expensive, best-of-the-best display?
Was that proof, then, that if you build it they won't actually come?