Intellegence reasons

The innegitimate reasons first.Occasionally companies charge a lot of money for their product simply to see what te market will bear.
compaies with superb reputation for quality service and support useually charge more for their product.Howlett-pakered and Apple computer are two obivious Examples.Many people are willing to pay more for product manufactured by one dealing with a manufacturere that looks after its customers.
Flexibility of design is another factor that has a big impact on price .Asmall mc system that has been designed to be expandebt to abig mc dsystem is going to cost more than an equivalent.Small micro computer system without the expantion capabilities.The expandable system has been designed with features that costmoney but are of no use until you expand the system.