I buy a new helmet every time my wife gets herself a new pair of shoes.
On a more serious note, I got pranged by a car about five years ago, I don't recall even hitting my head during the incident, but a small mark on the back of my then brand new helmet said otherwise. I still suffer from post-concussion issues. So that helmet sits on the shelf collecting dust with the rest of the collection.
If you get far enough away, you'll be on your way home.
Piss off, I'm in my Happy place.