USB 3.0 update will double transfer speeds to 10Gbps in 2014

[Jad Chaar]

"Meanwhile, Thunderbolt has yet to make a dent in the market, making an appearance on just a few devices, notebooks and enthusiast motherboards besides Apple's line of desktops and laptops."

^That's why.

I was just looking at newegg and Thunderbolt doesnt justify the $50-$100 premium...