Minor (admittedly pedantic) nit: the plane on display on the Intrepid is an A-12, not an SR-71 Blackbird. The SR-71 is slightly longer and heavier, and can carry a larger sensor payload while the A-12 can fly faster and higher, but they are otherwise fairly similar (the Blackbird is a refinement of the A-12).

Still the closest many of us are ever going to get to a real SR-71 though.

And I second ChaosEngine's recommendation: if you are an aviation buff, the Intrepid is definitely worth a visit. The shuttle is really impressive up close too; it's amazing they got something so big and truck-like off the ground.