What makes BBQ gas grills better than BBQ charcoal grills?

The benefits of a gas grill over a charcoal grill are minimal if you are a seasoned barbeque'er. However, the gas grill can give you a more even cooking surface on which to cook and the smoke of meat drippings is virtually invisible compared to that of a charcoal. There is the advantage of not having to wait until coals are hot with the gas grill like you would with the charcoal.