Great video doug!
Definitely never pay anywhere near the asking price as markups are huge! How else could they offer 40-60% off every second weekend???
I was shopping around for a mattress a couple of years ago and found it very hard to compare anything. Exactly what they want to stop you doing. I did notice that quite a few of the model names and descriptions changed from store to store. Yet the mattresses seemed to be very very similar.
Eventually found an independent discounter, tried a heap of beds there and paid about 30% of the retail price for what was, as far as I could tell, the exact same mattress.
Recently listened to a slightly different take on it from Freakonomics Radio: http://freakonomics.com/podcast/mattress-store-bubble/
Also explains a few phenomenon about why such similar shops (Mattress shops in this example) tend to cluster around each other in a city.