Saw this at Kim Komando this morning:
Expensive cables
When you're shelling out big bucks for a high-end LED HDTV and a new
Blu-ray player, spending an extra $100 or more on HDMI cables doesn’t
seem like a big deal. However, it's money you don't need to spend.
Unless you're running digital cable through an entire house, there isn’t
any difference between the $10 or less 6-foot digital cable and the
pricey gold-plated versions.
Back in the days of analog A/V, it's true that more-expensive cables did
a better job of shielding the signal from interference. Digital cables,
like HDMI, carry a stream of 1s and 0s. It either works perfectly or
not at all.
Some companies recommend you purchase their expensive branded adapters
when you buy their products. You can get generic adapters online for
less that work just as well.