Mobile windshield repair succeeded because it solved an urgent, unexpected problem (rock hits windshield) with instant gratification - coming to you wherever you are for $50-100 versus $400-1000 and days in the shop

Mobile windshield repair succeeded because it solved an urgent, unexpected problem with instant gratification—coming to you wherever you are for $50-100 versus $400-1000 and days without your car. This is a model for identifying urgent unexpected problems with massive convenience advantage.