I don't think the car analogy works:

> Sure, the machine might be faster than your current one, but except for the rare few cases when you actually utilize all that power, it won't provide a profoundly different user experience compared to what an iMac will deliver at a fraction of the cost.

Same could be said for a stronger car. It still only gets you from A to B. Except for a few times where you are not stuck in traffic, there is any benefit to the engine. And if you talk about ergonomics of seats and comfort, well nobody stops you from investing in better office gear.