TOareaFan
Superstar
Behemoth when built in 2008 cost $26 million. I don't know if it would really be cheaper... I know you weren't being serious anyway, but just thought I'd chime in with that.
Would a Gondola/cable car be cheaper? That would be a cool transition from transit to fun park.....if it also got people past the linwood at the park gates (by processing admittance at the connect point between the subway and cable car) it might create an incentive for public transit use to the park.