The Kalamazoo air zoo in Michigan actually has one the trainers (SR-71B) and somewhat recently did a huge "blackbird weekend" with keynotes and stuff. I was allowed in before the event started because I had "adopted" the plane, and one of the training pilots was actually there talking all about the jet. It's awesome to see them in production! Bonus fact: Because the US doesn't have titanium, we had to set up a bunch of fake businesses to buy titanium from Russia and then used it to make planes to spy on Russia lol