Most value is perceived, which you cannot put a price on as we're all different!
I have a friend who buys shoes and trainers for £10 a pair and laughs at me for paying £100 for mine. However, he gets through a pair every month or two after the stitching splits or the sole becomes unglued. He doesn't argue though.. after all, they were only a tenner - he just buys another pair and keeps laughing at me.
However, my £100 pair are not only more comfortable and better looking - they're still being used 3 years later and look perfect. So, he's been through at least 18 pairs at £10 to my one pair at £100. Who's the fool?
However - a Nissan Skyline GT-R will outperform a Ferrari costing 3 times as much. The Ferrari has perceived value.
Lee