Just checked Amazon and its $388 is the lowest without discount I've seen, which on top of the 12% Shopback offer today the console's gives it a great price today ($345.67). Mod: Edited price after cashback as it excludes GST.
Also please note if you guys are planning to buy extra games/ controllers on top of this purchase the Shopback offer has a $50 cap (per Shopback account) which the Switch is taking $46.56 of, so you should probably get your friends/family with their own Shopback accounts to make these extra purchases for you.
Please don't put the after cashback price in the title as per the guidelines.