Well - can't be everywhere - but i'll have a 50% better chance than anyone else of having the excess waived on a malicious damage claim with it than without it. Trust me - it's a small amount of money to spend compared to the time and frustration I spent on the phone with AAMI who wouldn't waive my excess because they couldn't identify the person who damaged my car last time - even though it happened in broad daylight on a busy street in front of a bar, and I saw it happen with my own eyes, and I had a written statement from a witness. Insurance companies will do anything to dodge a claim - I'm self insuring against the insurance company lol.
That being said - these cameras were all developed for the singaporean market where cars are SUPER expensive and vandalism is high. It is common to have up to four cameras installed on their cars!
I might get a lower spec 380G for the rear eventually......