Final answer:
The pleasure derived from seeing a good play is the best example of a service, as it is an intangible experience that provides utility or satisfaction and is performed by others.
Step-by-step explanation:
The best example of a service among the options provided is the pleasure you derive from seeing a good play. Services are intangible products for which people pay to experience or benefit from, and they are performed by someone else. Haircuts, insurance, dentist visits, and banking are all examples of services. The enjoyment from a play is also intangible and meets the definition of a service as it provides utility or satisfaction to the consumer, and you pay for the performance of the actors and the production team. Goods, on the other hand, are tangible items like the hamburger, milk, or the grill mentioned in the other options.