I think the reason you see the same few names like that is bc there are a few papers that really rise to the top. After many user experiences, you'll find those same names because most people have success with them, again and again. There are also more than one supplier, a few in fact, for each of the products you mentioned, so being a *commercial* wouldn't really benefit any one single supplier. I say price shop your product as price does vary from supplier to supplier.
My own experience has been that people on this forum post for the benefit of their fellow forum members, not the benefit of suppliers. Some folks do benefit by being members of the forum, but they also offer help to members. The best way to know if products truly are what they are reported to be by forum members is to buy a sample pack transfer papers, the variety kind. Press some shirts, wash and dry them. You may find yourself with the same opinion of those who have also done that and posted the results you are reading.
I could see it being hard to understand why it's a few great papers mentioned again and again, but when you know that that information is the truth, like I do (from using various papers), it's a comfort to know there is a place like this that shoots it straight and the helpful info is posted.
When in doubt about what you can trust, just order a sample pack. You'll find a great paper to use, as well as learn if you can have faith in the forums content.
