I think of the SR-71s, and all the flight records they set, and the aura around the SR-71 set it apart from the U-2; or did it?
The SR-71 came in after the U-2, and was the attention grabber. The U-2 just kept flying and doing it's job, and lo and behold, they retire the entire SR-71 program. In the public's mind comes the question of ," Why the hell would you scrub the magical SR-71 fleet, and keep the old, long in the tooth, piece of crap U-2?". In reality, it is a classic magician's trick of deception with the SR-71, while the U-2 gets upgraded, advances, and keeps on doing it's job.
Still, it would be nice to have the big, flat black, bad assed beauty, leaking on the tarmac; come out to fly every now and then.