Paid for itself how? It doesn't cost any more to submit a F1/4 as an individual.
I've had an active trust for a long time now, since my first can in the early 2000's. Doesn't cost me any money to use it now of course, but I don't, because what's the point? It's just more hassle when submitting forms, and a LOT more wait time these days. I know some people like to cite how they can loan their stuff to other people on the trust, but really, how many of us actually do that with NFA items? I sure don't.
Trusts became popular back when they avoided fingerprinting and LEO approval. Despite all the lawer/salesman talk these days about loaning your stuff and what will your widow do, etc, those were the primary reasons anyone used a trust. Now we don't need approval (only notification) and everyone on the trust has to be fingerprinted anyway; those benefits are gone.