Here's mine: http://www.globalplanesearch.com/warbirds/jets/ Anyone want to go in on a MiG-29 together?
If I recall, you run into serious I/E problems with anything newer than a MiG-21. During moments of insanity I attempt to wrap my head around a Foland Gnat because they're adorable. They're like the BD-5J in that Bond film but, like, real aircraft capable of hitting Mach 1 with a good running start and a steep slope. But then I usually check the spot price on Jet A, remind myself that a Foland Gnat burns about a hundred gallons per hour and recognize that it's about an order of magnitude cheaper to book a flight on Southwest.
I know a guy who used to own a T-37 Tweet. I heard he sold it, but it was one of two flying in the US (though several A-37s are in private hands). The cost to keep it flying was insane. He owned four aircraft and still flew commercial because of the cost. I'm convinced he could retire but works just to pay for his planes. He inherited a bunch of money (family farm became a Chicago suburb).