Cbfd: It wasnt a fail on chorus behalf - it was the fact that FTTN only was able to run for a certain amount of years and the amount of cabinets that got upgrade covered this time - if new ones had to be installed then the project would only be finishing up now :)
This isn't true.. as Chorus are still upgrading over 800 cabinets under RBI over a 5 year period which is effectively still the same program of work to upgrade the legacy cabinets to improve broadband. I think RBI is supposed to finish up 2015 / 2016, so there is still a number of remote cabinets still to be upgraded.
The issue is that not all the metro areas were cabinetised to the point that everyone could get VDSL. Only 10+mb ADSL. So there are many folks (myself included) that are Exchange connected but not far enough away from the Exchange that a cabinet was put in, so the speeds that you get are the best they are going to be.
And as I always say, every house needs a Master Filter / Splitter if you want to get the best out of your broadband, especially if you are further away from the DSLAM.