Is this context the cost of upgrading an existing FTTN enabled area to FTTC or the differential between the two options before the build is commenced?
From the 2018 NBN Annual report, the difference for existing premises in construction cost between FTTN $2,244 and fibre FTTP $4,401 is significant. There is no separate cost for FTTC?
Of interest is that the cost of FTTP in green fields situations is only $2,255.
Perhaps the opportunity that was lost, has been to have not done a wholesale copper replacement?
IE Build the NBN by turning large copper connected sections of a suburb off, rip all the copper out leaving all without fixed line for a while, remediate the pits and conduits for bend radius etc, pull fibre in (up to 5-10km for many suburbs based on adsl coverage), and then commence turning people back on. 
(3 month, 6 months, 6 years later)
Both the original and revised MTM plans chose not to go down this path for some reason? Compromised or political career ending options?
P.S.
I appreciate the optimism for a full fibre future. At home at present the breakfast cereal is the only promise that can be relied upon in that direction. 
With a new delivery date for FW for our part of the Glass House Mountains there is plenty of time for things to change, or just stay the same. We have been moved from 2019 to somewhere Jan-Jun 2020. Happy New Year! 
I have been able to engage in writing (email) and directly with our local Federal MP, the NBN Co, and even Telstra over the previous months. At least they are communicating. It would be reassuring if there are other Choice Community members who have been able to open communication with their local Federal MP’s (any team colour). My attempts to communicate with the current opposition seeking further knowledge have not been replied to! Perhaps I need to seek answers to a different question. The Bill on the ALP Billboard down the highway is only offering a smiley face 
at present!
