This is all I could find:
*For information on annual membership and benefits, please contact the Membership Coordinator at (314) 863-6300 extension 524.
Or this. It's from 2006, so who knows. Sound like you get access if you are staying there. Didn't really give the price of membership, though.
http://www.cigaraficionado.com/Cigar...4,1481,00.html