Re: not round here
Regarding dig-your-own (commercial rollouts)
The moment you announce it, BT will suddenly decide that DSL is viable - which in turn will lock any EU funding which was acquired to make it possible.
BT will then take their sweet time in actually providing the service (2-4 years is common) and at a significantly worse level than originally announced.
They've done it a number of times. Ofcom aren't interested.