yeah the prices do not make that much sense specially the black one...it's too cheap, a yearly bronce membership is 12th coins, a silver is 20th coins, a gold 24th coins and black 25th. between the last three just spend a little more and go up a tier, spending 4th a year in wine would make the change from silver to gold negligible and the difference between gold and black is marginal... you could always make the black one a special invitation only card or something to give exclusivity...