HANS will cost you more than $1,000. You wear it and it is attached to the helmet to keep your neck from snapping off. A common and fatal injury. IMO it's overkill (no pun intended) for amateurs since most rarely reach the speeds as the pros or are involved in pro-like race conditions.

Now, if you're running 6-second quarters or hitting 180 on the back stretch at Sebring...

I have Simpson five points.