I've certainly adapted to it and wouldn't change the response time of the IMAC III; never go back.
But, how do you feel when forced into a different frame? Or, do you feel like most that you are entitled to everything fast?
The problem I see today is that people are adapting to a life of ease at a young age, assuming it will always be so. Now, younger workers are unable to make it through a typical workday, or are unable to take instruction, let alone take criticism.