I am a member of the club and I think it is worth it. For example, the social events that are held on some occasions are free for members only; we have monthly chapter meetings where there is a meal and a guest speaker presentation - topics vary and we try to get speakers for presentations on subjects and topics that members want to know more about. We have excursions for members only - like wine tours, upcoming social getaways and access to information that you may have questions about. Also, how long have you had your Tesla? you may have questions; is this your first winter with an EV? you may have questions... we have members who have had their Tesla's since the very beginning in 2014.
We have lots of collective experience and knowledge with EV's - many members are what i would call, not just early adopters but pioneers in that they travel the globe with their Teslas and have stories to tell about what they went through and how to get the best out of your car. Sure there are people on the forums who will lend their advice, but you do not always know where that advice is coming from. Advice through anonymity can be less than accurate/believable.
This is just my view/opinion... I am a member and i see great value in it. It is totally up to you to assess what value you see in it.
What I do know is the club stands at over 500 members. Makes for great social functions/activities and interatcion with nice people and good food with shared camaraderie. Give it a try for one year a see for yourself... best way to judge value for yourself.
Hope to see you at a meet-up/function... take care.