There is no shortage of excellent tutoring materials available at low cost to independent Centres. We all make use of such. Each of us has favourites, and we also have a special relationship with certain providers, such as the New Zealand-based PAR Academy, and OutLearn, who equip similar tuition centres in the southern hemisphere.
But there are always new programs and publications coming out; and even if it were possible for any one person to be aware of them all, time would be limited to investigate and judge of their merits. Hence the value of a meeting once in a while, where new materials which have established themselves by proving useful to individual Centres can be referred to the broader membership.
So we learn not only of some excellent activities and worksheets etc, but also of possible bargains: the Association is often able to negotiate for discount with suppliers. This review of resources itself repays the annual APTC subscription (less than £100), never mind the other benefits of an APTC national network.