I think factory color calibration for every device with a display is a pipe dream. It simply doesn't provide enough value to the user for the extra effort you'd have to go to.
I think the more realistic option is some sort of easy home calibration solution, perhaps leveraging smartphones or consumer DSLRs.
The end goal will be displays that have extremely low per-copy variation and therefore don't need individual calibration for reasonably accurate colour. Most of Apple's products with retina displays are really good out of the box.
(Of course, this all depends on your definition of "accurate". We're still not there yet for professional colour work.)
There's also a strong temptation to increase the saturation and gamma to stand out in brief side-by-side comparisons. It's the visual equivalent of loudness war audio mastering.
My local sports stadium (Allianz Stadium, Sydney Australia) recently installed two enormous ultra-wide 27 by 10 metre screens. They are astonishingly clear and bright, however the saturation is pumped up so hard that grass looks like Simpsons-esque nuclear sludge and many team uniforms look fluorescent or luminescent.
It's particularly surprising because it's constantly being used to replicate the reality right in front of it. You can just look at the pitch to see what grass should look like.
No, you see, the display shows you what the grass really is and what it would look like to you if your eyes could pick out the vibrant hues in real life. /s
I think the more realistic option is some sort of easy home calibration solution, perhaps leveraging smartphones or consumer DSLRs.