I see that on ShopHQ, their line called Cooks Tradition ceramic is all on clearance. My guess is that it is all made in the same factories in China. Their clearance prices are great, it there is a pattern/color you would like. I'm sure it performs the same as the Temp-tations. I would guess that since the whole line is clearanaced, that it is being discontinued.
Temp-tations is known for cracking and crazing of the glazing. It happens in most lines of ceramics overtime, but usually takes many years with other/older lines of stoneware. TT seems to have it happen much sooner than some other lines I have used. Some of it can be prevented by proper care and handling of the stoneware, (especially not letting it get water soaked into the unglazed areas) but is a risk with all stoneware brands.