In other words, the big players don't like the "open" naps and are deliberately not installing sufficient bandwidth to them?
No, the open NAP's are bad engineering and the big players are fixing the topology by routing around them.
But people keep claiming that some naps are well engineered and have excess capacity and that the problem is the size of the pipes leading to them. Adding more pipes is easy enough, leading to the conclusion that there are other factors at play.
In fact... :) To borrow from your FedEx model.. We can build bigger doors (MTU) but the conveyer belts are stuck at 100Mm/sec. We need faster conveyer belts! (waiting for HPPI-64 or G-Ether technologies w/ baited breath :) And then watch out 2-4Gbps backplanes... (that is aggregate right?) -- --bill