Its not that ADSL is expensive.
Its that UFB is cheap.
UFB is massively subsidised by the government and the entire point was to stimulate demand for UFB by making it about the same price as copper - which is exactly what happened.
"Chorus’ business today largely comprises copper revenues ... Around 65% of Chorus’ FY13 revenues were reinvested in capital expenditure, most of it for fibre. "
direct quote from a document on the chorus website BackgroundQandA-on-UBA-decision.pdf
Translation, Chorus makes a heap from their copper network, and is using it to build a fibre network. So people using copper are subsidising the fibre network.
The problem is that around my area we have been relegated to the slowest ufb install date - previously it was just "some time after June 2017" however today I see it has been updated to 'by December 2019!' I was promised that our exchange would get a Faxability upgrade in a year back in the late 1990s (I would be still waiting if I could remember when I last used a fax) and about 5 years ago we were told that a cabinet was due to be installed at the end of our road "next year" - and that still hasn't happened. So what confidence do I have that we will actually get UFB?
Anyway, thank you very much Skinny for your 4G broadband plan. It was a mission to get it - mainly because the modelling showed we had zero coverage. But a Skinny sim in a 4G mobile showed there was coverage here, and thanks to @livingskinny, I was able to dump the copper and go wireless. I have 5 days and 2GB left on my free month (hmm, I wonder if I need to manually renew or if it happens automatically - I guess I find out tonight!) and I am loving the boost in speed, particularly the much much much faster upload speeds! The link is maybe 12 to 15km.
The only other option I had was a wireless connection, however due to a longer link of over 30km, the install cost was going to be ten times the cost of Skinny, the speeds slower than Skinny (but faster than adsl) and the monthly fee higher - hence it hadn't quite happened yet.