PM is very particular about his aircraft, if it isn't spot on he won't acquire it. So there may be lot's of 737-300s out there, but if it isn't the right hull at the right price then forget it.
For those joining next year on whatever contract welcome, I think you will find it a satisfying place to work.
It's not perfect, but give me imperfect and paid any day of the week! I have been her just over 4 years and am very happy.
Rudolf.