Broadband/nbn plans come with options most of the time - sign up to a contract (ie 12 months or longer) and save a little each month (or get a free modem) OR sign up to no contract, and just go month by month.
Contract benefits - Cheaper plan overall and/or free modem.
Month-to-month benefits - can leave anytime (ie if you see a better deal, or your circumstances change - flexibility)
I think facts will speak for themselves, so my question is:
RIGHT NOW, ARE YOU IN CONTRACT WITH YOUR INTERNET PROVIDER, OR COULD YOU LEAVE ANY TIME?