Olympic medals: A rating system

I still contend that Olympic medals are far from being created equal. Here are some ideas for ranking them and see how each event, and therefore, each medal stacks up against each other.

The list is by no means exhaustive. If you want to submit other criteria, by all means do!

Just a few ideas to get the conversation started:
Participation level (competition), Local, Courage, money commitment, technical difficulties, subjective vs. objective measures, physical danger, intensity of training required, relevance to the general public as practitioners, athletes' natural gift and dispositions as well as entertainment value to the spectator. To be continued...