Hi Dolby, you appear to love to tackle the most controversial topics head-on lol

Let me me add my 2 cents by quoting Steve Jobs approach (Apple's approach)
Basically Apple picks the technologies that it feels has the best chance of succeeding and bringing in the greatest advantage for them, in the past they picked for example:
- 1st to implement 3 1/4" stiffy drive; also 1st to remove it.
- 1st to remove Flash (very contentious one, but it starting to look like flash is dying, even Adobe is transforming their products for HTML5)
- DVD instead of Blue-ray (Blue-ray due to price has failed to get off the ground, DVDs are still more popular).
- 1st to remove DVD; move to software online and media online.
Yes maybe you could be right, that they've made a mistake by not adopting USB 3. Imo I think they've gone down the right road as thunderbolt (light peak) is definitely the more superior technology -- based on bus level connections that can allow for interfacing directly with the bus i.e. removing the previous interface limitations
- 10Gbps currently on a copper connection and built to run at 100Gbps on on Fibre
Apple doesn't follow industry trends, neither does it conduct market surveys to make its decisions -- some might say this is arrogant, but in practice (so far) it appears to set industry direction.
Btw I can't remember when last I used a usb stick or drive -- it's definitely becoming less relevant every day...
As a final note; with thunderbolt being a bus level technology, nothing prevents someone creating a USB3 to thunderbolt adapter (the other way is not technically possible).