Thanks, Boss.
HZ123 - Setting aside noise/emissions issues, it's not surprising that there's a market for B737-200s in many parts of the world. JT8Ds are down to pin-money (compared to ten years ago), people like Romaero might D Check the aircraft for a genuinely modest sum, and the basic structure is lasting fairly well. The maintenance history is everything, I guess - I've seen mid-70s aircraft that have received plenty of TLC in far better shape than some of the last aircraft off the line ten years later.
I know of one US lessor of the more "vintage" types that regards B737-200s as still the hottest property of their generation. They'll buy as many decent aircraft as they're offered at prevailing prices.