Final answer:
Mike Wade's reluctance to change pest extermination services despite dissatisfaction exemplifies 'Customer inertia,' a phenomenon where customers stick with a service out of convenience or aversion to the effort of switching.
Step-by-step explanation:
The situation described where Mike Wade continues to use the same pest extermination service despite being unsatisfied suggests an instance of Customer inertia. This term describes a situation where a customer continues to purchase a product or service from the same provider out of convenience or from a reluctance to go through the effort of finding a new provider. It’s not about service quality improvement or direct monetary costs, but rather about the reluctance or effort involved in making a change.