We have a lot of those networks here in Sweden. The thing is though, it is much more expensive than simpler networks where you have a "group connection" to an I

We have a lot of those networks here in Sweden. The thing is though, it is much more expensive than simpler networks where you have a "group connection" to an ISP. I think its usually double the price to use a service platform fibre network, and sometimes the group connections can be had for 1/4 the price! Although I have to say these new platforms are kind of awesome. The city I live in has a city-wide (and beyond) network where you can choose from 1-1000 Mbps service from several ISPs. And it has "local peering" which means if you send data to/from your neighbor, no matter which ISP they have, the data will only hit your local router in the basement/close by. No need to send data via the internet, or even an IX. In practice though, that performance is not much different from just sending the data on a much longer roundtrip, which makes me sad.