The best way to describe the membership levels are like this:

It's like going to Florida and buying a day pass at Disney. Or, planning a vacation to Disneyland and staying at the park.

If you're going to stop by the club once a month and smoke a cigar or two, then the Diamond Membership is for you. If you're going to use the club to do business or stop by several times a month, then the Platinum Membership is the best buy.