This argument could eternally be applied to computers. Why buy now? In just 18 short months, there will be one that is twice as fast. Are the 18 short months

This argument could eternally be applied to computers. Why buy now? In just 18 short months, there will be one that is twice as fast. Are the 18 short months up? If you waited just 18 more, you'd get doubly as fast again!