Was assessing options for NBN and found optus is offering to waive $99 start up fee (online and in store). Whilst it is not super fantastic but it may give incentive for anyone wants to look for cheaper nbn option.
There are other competitor that offers cheaper nbn, so Optus is not the cheapest.
Modem
You can also saves $252 for the modem cost, if you stay with them for 36 months.
Monthly cost
Optus NBN FTTC that I found was $75 (nbn 50) and $90 (nbn 100) which considerably cheaper than Telstra. $90 (nbn 50) and $110 (nbn 100)
Perks
Optus sport is included. (Value appx $129)
Note: you can get extra 25,000 Flybuys points if you go through this link
(Thanks crazynic)
Offer - Terms and Conditions
$99 start-up fee waiver on Optus nbn Internet plans: Available to customers who sign up to an Optus nbn Internet plan. New services only. Consumer and SMB customers with a valid ABN/ACN only. Not available with other offers unless specified. Offer valid from 18/12/20 and ends 17/01/21.
But why would you want to go with Optus? Especially on a 36 month contract!