Hi Thrasher,
I agree with this and the “value” of a mattress purchase includes much more than just the “commodity value” based on the cost of the raw materials in a mattress (although you always would need to make sure that there are no obvious weak links). This is why I encourage people to evaluate a mattress based on parts of their personal value equation that are most important to them.
When you look back on a mattress purchase a decade or so from now you will remember much more about how well you slept and how long it lasted than you will about how much you paid although of course the price you pay is also an important consideration when you are comparing similar mattresses.
Phoenix