re: Amazon: Era Of Data Centers Ending
For me, this is a mis-statement. Not the end of the local data center in 10-20 years but looking at the local data center in a different light as in more "virtual", i.e. in the management of centralized computing resources and maybe a growing need to make available (or rather expose) software and data beyond the corporate center for a more "global user community".
Though public clouds are "fully redundant", your local site (in the traditional sense) is still the endpoint and if not redundant in that sense now, won't be in the future. The reality of the day is still the same for redundancy, not considering limitations or the additional cost for sufficient bandwidth. Current network technologies can't keep up for providing bandwidth.
I'm not going to drone on about cost. Others have chimed in here. But then again, looking into the future. . . who knows. We've also seen the export of IT jobs, to come back home due to cost and quality.
In the end, I can see a blend, definitely not the extreme as Amazon would like to paint the picture (some would call a fantasy).