I good friend of mine got taken in at a big box store, when he purchased a complete HT a couple of months ago. The package included a very nice Samsung LCD, a lower-mid-range Yamaha receiver, a good Sony BR player and a Polk Audio RM 6750 5.1 speaker system. He isn't all that demanding of audio performance, so those speakers are fine for him and fairly priced. HOWEVER, for the cables, they convinced him to go with Monster.
I had tried to convince him to go with a better set of speakers, but he got a bit testy about it, so I dropped the subject. When he said that the package included Monster cables, I told him he could get the same quality for MUCH less. He had actually questioned the salesman about the need for such expensive cables and was told, "Time and time again, people buy the cheaper cables and then bring them back because they aren't happy with the performance. When they go home with the Monsters, they are much happier." So, my buddy went with the Monsters.
He didn't like it when I said that the great deal he got on his components went down the drain when he bought the Monster cables. The package also included installation. I was afraid to ask what that consisted of. I imagine that it consisted of plugging everything in and little else. No wonder people brought their cables back - with nothing calibrated, of course they would be unhappy. They'd have to blame
something!
I never mentioned his HT again when my friend said, "How can you say there is no difference in the wires, but that there's a difference in speakers?" Sigh...