After sitting on this for some time, I decided to pull the trigger on an M-Cable from Marseilles. The 9 foot one was on sale at Amazon, and while I don't NEED a 9ft cable, it was cheaper than the 6ft model and 3ft is waaay too short.
So if you don't know, this thing basically has a built in upscaler that redraws pixels on the fly - it's an HDMI cable that upscales games and makes them look better (youtube it for way more precise and detailed information). I have been using it for about a day, and I've got to say, it walks the walk. PS3, gamecube, 360 - all look definitely better with this. I also grabbed a mini hdmi-hdmi converter and started using it with my Retrotink. Doesn't do much for anything before PS1/N64 era, but from then on it is amazing. N64 especially. Retrotink helps, but this thing is like fine whipped cream on a sundae.
So is an HDMI cable worth over $100? I would say so - depending on what you're going to use it with. Pretty much everything from PS1 generation to PS3 generation looks great. Anything before or after, minimal to no benefit.
Also, will not work with 4k.
