Only an hour before reading this post I was with a friend and was telling him about recently joining TMA. One of the first things I said was it was one of the best $15 I had spent in a long while. Then I told him about the huge knowledge base provided through the forum, and the ability to have experienced folks help with tried and true solutions. There was more, of course, but seeing this right after having that conversation compelled me to post.
Anyone interested in traditional muzzleloaders and not yet a member of the MLA is missing out. It's as simple as that. Personally, I think $15/year is the best deal to be had. It would be cheap at twice the price.