Here is the current (March 2020) breakdown of expenses:

SSA Membership
WSSA requires all club members, regardless if they are an active flyer or not, to be members of the Soaring Society of America.  Yearly dues to SSA are $75.  Youth members (22 years old or less) & family members –  $42.  

Membership Initiation Fee (most, if not all clubs have one)
Regular Membership:  $250
Temporary Membership (less than 6 months):  $125
Family Membership:  $125 for each family member (regardless of age)
Youth Membership ( 22 yrs old or less ):  $125
Associate Membership (non-flying member):  $75/year or $250 (one time)

Monthly Dues
Member: $85/month w/ unlimited use of all club gliders
Youth ( 22 yrs old or less): $42.50                                                                                                                                                Family members): $42.50                                                                                                                                                        Members w/ Personal Glider: $42.50 (Can rent club gliders at $30/hr)

Tow Fees
$18 for the first 1000′
Additional 100′ increments <3000′:   $0.60                                                                                                                    Additional 100′ increments >3,000′:  $1.00

Sniffer Flights
$150 for three flights. First is a high-tow with a commercial rated pilot.  The second and third flights are hands-on with an instructor to landing pattern altitude (1500 ft. or less).  After the third flight, you decide whether or not to join the club. If you join, your next two flights with an instructor to pattern altitude will be free.