This was a really interesting post. I had several reactions, then I had to read it again, and continue thinking before I commented.
My first thought was, no. I couldn't think of a single time I had bought a training course. Then I had to say, yes, because of the fact that I knew of training courses that could be purchased, so the mere fact that they exist means that it could be a commodity.
After the second time through, I remembered a very expensive video tape (It was 18 years ago) chess opening training course, that I had purchased. Then it made me think about Chess Master, which is both a chess computer game, but it also has a training component. Both of those I loved dearly at the time and felt they were of great value. I was surprised that I hadn't remembered them immediately.
So, I've obviously been all over the place. I started to wonder what I might think about your training. Having read a number of your posts describing all the features, I feel I have a pretty good understanding of the extraordinary value the training provides. I know I'd love to take a course, if I weren't poor.
My first reaction was that you have made a good case that your course wouldn't be the same as a commodity. If one had access to videos of the presentations, via a subscription model or something like that, it wouldn't be nearly as valuable as being there in person and being able to ask questions. Then I had a second reaction.
There is the old adage about not letting perfect be the enemy of really good. If I had the money to be able to afford one of your courses, I'd spend it on one of the books I've yet to hire an editor for, so there are several things in line for my dollars ahead of the training, which is too bad, because it looks like good training.
I started to think that for people like me, who can't have the A+ version, a B+ version (subscription to videos), for a much lower price, would be awesome.
Now, this doesn't mean that I think you should create a commodity, because I have no idea of the costs involved, (both time and money), or do I know if there is a market for such a commodity beyond me, but I think that there are circumstances where your training would make a fine commodity.
Sorry I rambled on for so long. I do love posts that make me think, though. Thanks for that.