EDIT 08/05/2020: Mwave seems to be out of stock temporarily (but looks to restock soon), while UMart is also doing the same $165 price if you pick up: https://www.umart.com.au/AMD-Ryzen-5-1600-AF-6-Core-AM4-3-2G…
PLEASE NOTE, EDIT 30/4 3:25PM: Thanks to O O for noting, it is cheaper at MWave: https://www.mwave.com.au/product/amd-ryzen-5-1600-af-6-core-… ($165 + $10.95 delivery), and lesser postcode restrictions.
While not as great as the previous lowest price, but everything has gone up in price, so while $30 more it is still the best value CPU, especially when the price includes delivery. (Only better price is PLE, which is $169 excluding delivery. So if you are in WA or Heatherton VIC and can pick up, go for PLE instead.)
A bit of background for those not really aware, this 1600 AF (from the part number YD1600BBAFBOX) CPU is actually a second gen 2000 series 12nm processor part instead of the first gen 1000 series. AMD retained the first gen naming for its own practical/operational reasons.
Performance is virtually equivalent to the Ryzen 5 2600 CPU, so at least $50 saving (going by staticice's currently lowest price) before accounting the free delivery. The 1600 AF's performance is generally within ~15-30% of the popular Ryzen 5 3600 depending on tasks/games, while costing at least ~40% less than the Ryzen 3600 (going by the lowest Amazon US price post).
EDIT: Free delivery only for metro and some non-metro postcodes. Worth a try to see if your postcode can get the free shipping.
Been very happy with mine for the old centre com price of $149.. postage to western sydney was like a whole week though