[sangnoir]

> 10Gbps is absolutely great, but then the city might create an entire bureaucratic structure around it and in 30 years when it's not great anymore the apparatus won't die or be displaced like a company eventually would

I would fully agree with you if there was actual competition. As it is, I have no faith that terrible internet companies - especially monopolies - are guaranteed to be replaced by better ones (see Ma Bells offsprings/reconstitution).

My ideal scenario is that cities lay down the last-mile fiber and handle physical layer connectivity issues between homes/offices and an exchange (for a fee). ISPs would provide Internet connectivity, that way, you get actual competition, and the cities stick to their core competency: infrastructure.