If you get a crack in your windshield, you can take your car to an auto glass repair shop where they will gladly try to repair your windshield, so you can avoid having to replace it.
They guarantee their work, too; if the repair is not successful, they will allow you to apply the money you already paid for the unsuccessful repair toward the purchase of a new windshield.
Sounds terrific, but how does this strategy relate to the material in the chapter? If all auto glass repair shops employ this strategy, what impact do you think this has on the price of a new windshield?