That's absolutely true, the closer to the root nodes of EU you get the cheaper the bandwidth is. Heck, in Romania you can even get 10Gbit on a small datacenter

That's absolutely true, the closer to the root nodes of EU you get the cheaper the bandwidth is. Heck, in Romania you can even get 10Gbit on a small datacenter for a few thousand €. So sure, if the larger nodes can weigh up the smaller ones in a distributed network, then it might be plausible.