I agree with you but I don't think we'll have to wait 10 years to see that happening. We're still a fairly small startup but we're transitioning our whole platform to be built around Mesos (and we're definitely not the only ones in that case).

I don't know why many people think that they need to be at datacenter scale computing to benefit from abstractions like Mesos, it's completely wrong imo.

It's quite a big shift in mindset but it makes the life of everyone (dev and ops) so much easier when you stop having to think about single machines.