10 gig still isn't even commonly available on server motherboards, because of power / space / cost. There also aren't many copper 10 gig top-of-rack switches, just the Cisco Nexus 3064T and Arista 7050T come to mind. Juniper doesn't even have one.
It's easier for a lot of places to use twinax with 10 gig SFP+ switches rather than going copper 10 gig. That is definitely not going to trickle down to the consumer level.
It will probably be another 1-2 years before 10 gig is ubiquitous at the server level, and another 2-3 years after that before it is commonly on consumer equipment. Or maybe it never will be, and things will go in another direction.
> There also aren't many copper 10 gig top-of-rack switches, just the Cisco Nexus 3064T and Arista 7050T come to mind. Juniper doesn't even have one.
I might be missing your definition of tor. The juniper QFX5100 series has the 48T which does 48x 10GBASE-T plus 6x QSFP. the 5100-96S does 96x SFP+ and 8x QSFP. There are plenty of other cheap merchant silicon platforms that look similar. Personlly Im happy with DAC on SFP+ ports.
Oh yeah, I always forget about the QFX series. Seems like that would do the job.
List prices are utter nonsense for switches, but the QFX does come in above the other two I mentioned. Perhaps because of its fibre-channely nature that no one (I hope) cares about.
Still, any of these would work if you get the right deal. I could see an advantage for 10g copper if I had mixed racks where not all of my hosts needed 10g on the server side, but that's a big premium to pay over 1g TOR if you aren't using lots of 10 gig ports.
For me, I just use copper on 1 gig racks and DAC on 10 gig racks. So far, so good.
It's easier for a lot of places to use twinax with 10 gig SFP+ switches rather than going copper 10 gig. That is definitely not going to trickle down to the consumer level.
It will probably be another 1-2 years before 10 gig is ubiquitous at the server level, and another 2-3 years after that before it is commonly on consumer equipment. Or maybe it never will be, and things will go in another direction.