To be honest more expensive car are miles ahead of a cheap one in many ways: usability, drive support systems, safety, etc. After owning fresh Mercedes C-Class i started to fear economical cars much much more than crazy BMW next to me since the last one is most likely will be able to stop in the case of emergency than a cheaper one.
I understand it's "fast", but what do you use that speed for to justify spending so much more money? I understand if you're so wealthy, you're willing to pay $800 more to open Facebook a second faster than me, but I don't get why an average person would do something like that.