Yes you are right today .... but also you are wrong.
This is the plan -
https://www.kogan.com/nz/buy/kogan-m...gb-30-days-nz/
$330 per year which is still reasonable. BUT at various times of the year (sale type times) including Xmas just gone - the $330 a year plan and all the others are sold for half price. So $165 for 180gb (or 15gb a month) which is what I paid in early Jan. Also swapped my wife over from Skinny another Spark brand at the same time - so really 2 for the price of one.
Which is a pretty large saving from $60 x 12.