A report showing that there really is no difference between buying a cheap HDMI cable compared with a so-called high end cable.
http://www.stuff.co.nz/technology/2256956/Expensive-TV-cables-are-a-rip-off
When I splashed out a heap of money recently for a TV and home theatre system from Harvey Norman I was told I absolutely needed a Monster HDMI cable to "get the best picture". The cables were $299 each and I supposedly needed three of them based on the equipment I was buying. I told him I could get my own cables, but how many people fall into that trap thinking they should be spending that much to go with their new TV or Blu-ray player?!
I bet you still won't see these companies actively advertising what this report shows, or even changing their sales pitch to customers.