True, you see some real oldies, B-49, at some of these air shows; and damned if I want to go up in an old biplane, e.g.
Anyhow, not to hijack the thread, but when defense money talk comes around somebody usually points out how "old" the B-52s are, e.g., never mind that they are adequate for doing the job, their life expectancy greatly exceeds autos; got to have latest, it means jobs and votes...MONEY.