I don't really know why it's so expensive and sought out for. I have a bottle of it thanks to my father, who doesn't really wear cologne. Unfortunately I have a cold again, so I can't get a good whiff of it to accurately tell you it's character.
I can tell you that it smells very 90s or 80s, if that makes sense. :-?
Think about the macho, hairy chest colognes of that time and you basically got it. You're not missing anything.