But this is only true if you plan on holding on to those people over the long term, which you don't. You work them until they leave voluntarily or burn out, at

But this is only true if you plan on holding on to those people over the long term, which you don't. You work them until they leave voluntarily or burn out, at which point you replace them with a new crop of fresh-faced university grads. This has the added benefit of ensuring that the $70K/year or whatever you're paying these people stays static. Experienced people have a bad habit of expecting to earn more money as their skills deepen. By keeping your workforce in a constant state of churn, you drive those people away before they can start making demands.