Membership in Billsboro Winery’s Case Club is open to anyone who purchases 12 bottles or more of Billsboro wine. Membership lasts for one year from the date of purchase. To maintain your membership you must buy 12 bottles within the next year. You can do this all at once or as little as onebottle at a time. Discounts: Case Club members will receive an additional 5% discount than offered to the general public, provided you identify yourself as a Case Club member. Discounts for Case Club members: Case Club members do not pay tasting fees.