The Crane Store is an experienced home appliance dealer. Crane Store also offers a number of services together with the home appliances that it sells. Assume that Crane Store sells dishwashers on a standalone basis. Crane Store also sells installation services and maintenance services for dishwashers. However, Crane Store does not offer installation or maintenance services to customers who buy dishwashers from other vendors. Pricing for dishwashers is as follows:

$\backslash$table$[[$Dishwasher only,$$1,380$