I laernt that lesson over twenty years ago. I paid $12.5k for a car. When it was stolen, AAMI valued it at $6k and were going to pay me 80% of that. (Why 80%? AAMI told me that is what all the insurance companies pay.) When the car was recovered (luckily) they valued it at $10.5k.
For this reason most of my cars are insured third party and I self insure the difference.
The two Mercs are comprehensive through Shannons.

