I'd probably take the $50k and buy myself a high deductable health insurance plan. You can do that fairly inexpensively if you're healthy and young (non-smoker). If you have dependants, that changes things.
In some US cities 50k is a great paying job based on the cost of living. The one of most value is 50k without the bonus and extra benefits. Guaranteed money is always better than "maybe" money.