Just to be clear - not addressing anything else but the TSM thing, because it keeps coming up (and yes, there are some other things that are not updated as others have posted). Toy Story Mania IS listed in the DHS attractions and if you check the box for it when creating your AVP (or add it later), it will be added to your list of attractions. There ARE 2 very detailed articles written about it - one about the attraction, and one with multiple approaches to touring DHS and hitting it with all the other headliners. As far as I know, the ONLY place it doesn't show up is in the "sample" plans.
I think someone else already said this, but the TGM site isn't really about the sample plans. If it was just about that, it would be the touringplans site, I guess!

TSM is more of an online book, meant to (1) teach touring strategies, and (2) give descriptions of the vast majority of attractions, shows, restaurants, resorts, resort activities, etc., with (3) forums that are specifically designed to support TGM's philosophy of touring, and (4) recommendations on what days to do what parks. That's what you get for your $20.
A lot of people, though, sign up, look at the best days charts and then look at the sample tours and not much else. Then, they complain that TSM isn't included (IMO, I actually think TGM should ditch the sample plans altogether, because I don't think most people understand that they're best used as a starting point for customizing your own plan and I don't think a lot of people want to create their own plan). I really don't recommend TGM ever if someone is just looking for canned plans on what order to do the attractions in - it's not really intended for that. If that's what you want, TGM isn't really a good fit for you.
Just my $.22 cents, it's well worth the $20, IF you're looking for what it offers. If you're not, then it's not going to work for you whether it $2 or $200 - if you're not happy, ask for your money back.
The site is not perfect by any means, but none of the Disney advice sites are - pay or free, they all have some issues with updates and the like.