USATT Membership and Mass Mailing
USATT has about 8000 members. That's pretty weak in a country of 314 million.
A few days ago I received another brochure in the mail (regular mail, not email) from USTA (U.S. Tennis Association). For many years I played tennis on the side (and had a heck of a forehand!), and used to go to group training sessions twice a week for many years. I also played in their doubles leagues, and joined USTA to do so. Being a smart organization with 700,000 members, which are overwhelmingly league members, they have been trying to get me back ever since. Which is why I regularly receive both mail and email from them.
Is it cost effective? Of course it is; they are not idiots. I still get mail from many other organizations I used to belong to (and I bet you do as well), always encouraging me to rejoin or re-subscribe. Former members are probably the single best group of people to target when trying to increase membership. USATT should target this group.
USATT has a membership of around 8000 or so. (If you include life members who are no longer active or even alive, organizational memberships which were mostly given out for free, and club memberships, the number may shoot to something like 9000, but I don't have up-to-date figures, and USATT doesn't seem to publish them as they used to do.)
How many is 8000? Let's see: