Re: All Pi's need USB3!
Why do they *need* it exactly?
You might need it for the use-case you've got in mind (I'm guessing you want a dirt-cheap file server or some such) but I'm willing to bet the majority of folk don't need a whole lot more than basic peripherals.
AFAIK there is no SBC with USB3.0 and gigabit ethernet, much less one for $35. Sure, USB3 would be nice. I'd hardly call it essential though. You might not care about a price increase, but the price is and always has been the big leveller of the RPi and makes it so readily available to practically anyone. I'll live without it.