CT is having their fabrics manufactured for them, probably in China. Everything is made for them to their specifications.
It is not the same as buying a fabric such as Moda or Kaufmann or any of the other large manufacturers. Yes, they also have their fabrics manufactured for them outside the country but they first are hiring well known designers to design the fabrics for them, CT is not. CT will not sell to retailers and that in itself keeps the prices lower. They have eliminated the middle man.
I have used their fabrics and their threads. I find their threads to be way too linty for me, my opinion only. I have found that their fabrics are getting thinner. I found that some of their older fabrics to have a better weight. I good way to try some of their fabrics is to get a charm pack of the styles you like and you can see, touch and work with the fabrics at a very low cost to see just how they work for you. I will use some of their fabrics depending on just what I am making.