MikeN2UZU, you left off my other statement.
Like I said a helmet is worth every penny you spend on it and you should definitly wear a helmet. As you pointed out a helmet can prevent long term permanent injuries.
I just want people to know that ski in control, keep your speed down, ski with a helmet, but ski like you normally would if you were not wearing a helmet. The helmet is probably not going to save your life. Staying in control and reducing your speed has a much better chance at saving your life and possibly others skiing and riding around you. Be safe out there.