Hi bwomp,
More even than mattresses … personal preferences play a significant role in a pillow choice. There are some “needs” here as well (see the pillow thread here) but these are more basic and the search for the “perfect pillow” can be an ongoing quest. In many cases (including my own) … pillow preferences can change depending on circumstances and even “mood”.
In terms of the mypillow … you can see some of my thoughts about it here in terms of materials and design but with pillows much more than with mattresses … the quality and durability of the materials and how long a pillow will last is much less important and how well it keeps your head and neck in alignment in all your sleeping positions and the many other personal preferences that people have for a pillow are a much more important part of their “value”.
Phoenix