People saying parts are hard to find and more expensive, not sure that is correct. If you have an early case and try and find good parts is impossible. One reason is that they far more cheaply built than JCB. I have one from 1977 3C MK2 and can still get parts from AIS, a MI. based company but send parts all over the US.
JCB made and sold more backhoes last year than all others combined, they must be doing something right.