1. Supports long HDMI cable runs up to 100 meters (328 ft.) with no loss of image quality.
This is extremely important in larger homes and after we see HDMI matrix switchers hit the ground (HINT!) and is well worth the extra money for that alone.
2. Supports higher bit rates required for 1080p “deep color” (12-bit color) essentially making the fiber optic solution more “future proof” than copper cables.
If the cable is guaranteed HDMI 1.3 compliant, then this is a plus, but not really worth more for shorter runs. That is, if I'm going 10 feet, then why not go with any other HDMI 1.3 certified cable? But, for longer runs, this can make a lot of sense... 100' PLUS guaranteed HDMI 1.3 compatibiliyt? Yes sir, thanks!
3. Optical cable is not susceptible ground loops, or RFI/ EMI interference.
Always a plus... really! Though, I'm not sure how much ground loops can play into any of the fully digital formats. Interference? Yes... but ground loops? Anyway, it's a plus for sure, but once again, more of a foot note item.
4. Narrow cable diameter; Possibility to pull cable through narrow conduit.
Oh - HECK YES! HDMI made a huge error when they didn't standardize their cabling to properly fit through 3/4" standard conduit. This is the stuff that most A/V users will easily be running in their homes, yet it is 1/8" to narrow for HDMI cables. For retro work or just having a piece of standard 3/4" conduit in place, you have to go with another solution. Fiber or cat-5 HDMI solutions become the only alternative at that point.
5. Elegant High-Tech solution.
Solution is the key word. Elegent is because of the other factors, so this becomes a headline for all the other items in this list. It is elegent because it is optical, and supports full HDMI 1.3, and all the other stuff. But, this is less a single bullet items as much as it is a synopsis of what opitcal HDMI offers to the end user/installer.