I've seen that, too.
The ever popular "Why would I buy a new [insert whatever]? I can repair this one for half the cost!"
Of course, after 2-3 times of that it's no longer half the cost.
Certainly wasn't implying it, and if they have good maintenance, that's very good to hear.
Like you said, they're getting old. Old airplanes can still be reliable and have good dispatchability, but short of a full on restoration (which nobody wants to do and it will cost almost as much as a new one), these things will happen.
And like you, I don't have much of a solution. A lot of these new planes I just don't see holding up like the old ones long term. Now, they may still have the solution of getting something more reliable on the line and training people reasonably enough for the short term. But with the costs being what they are, it's still a hard sell.