YF-23 - the hottest plane that should have been. but would like to own a PT-17 or WACO - at least in realm of possibility.
For the -51 fans, go to www.stallion51.com. They have a 2-seat P(F)-51 with dual controls, located in Florida. They offer several levels of flight from "rides" to checkout for those with time in high performance aircraft. price is not cheap. I think it is close to $2000 for the basic orientation level, but how much do some spend on models and supplies? I'd bet you all would remember a P-51 ride longer than building any model! And where and when else will most non-millionaires ever get to fly in a P-51?
Also check out the Collings Foundation. They have 2 WW2 flying aircraft that they offer rides - a B-17G and a B-24J. About $400 for only a 30 minute ride - but again, where else will you get the chance? They do have an F-4D Phantom, plus many other warbirds, but don't offer rides. I think the EAA may also do the same with a different B-17 (www.b17.org). About the same price. Both tour all around the country. Check their websites for locations.
And who says you have to fly at mach 2 to have fun? (that is probably a lot of work really - NO time for mistakes or malfunctions). Flying around in a Cessna 150 at 100kts on a clear day cross country is fun - and on those days with turbulence, an experience! And moderately affordable too. You can take lessons in a Decathalon and do unusual attitudes (loops, rolls, spins, inverted) too.