I'm going to be in the same situation as Robert this winter and I'll be
having my 1.9 rebuilt. One of the big expenses appears to be the heads.
What is the advantage of buying new heads, vs, reconditioned heads vs.
having a machine shop do them?  Let's say my current engine has gone 80K
miles on it's last set of machined heads. That was fine with me as the
rebuild was dirt cheap. Am I only getting longetivity with new heads or are
they much more reliable?  Can the machine shop do it "wrong"?  Are
reconditioned ones a good compromise?

Heads come up allot here and I'm trying to determine if that extra $1000
expense is worth it if I'm fine with my next rebuilt not being able to make
it to 200K.

Thanks,
Bryan