Car shows- Something does not make sense

there is a show here in Michigan, at the Gilmore Car Museum (in fact, they host all sorts of shows) and with admission to the show comes admission to the museum, so things are a little different

last time i went to the mopars show there, i intended to go as a spectator
but the guy at the fence explained to me it was cheaper to enter the duster as a display vehicle then to buy tickets for me, my boy and my buddy


so i entered it, and left when i was done