What else to say? One of Ozbargainer's fav TV. This might be the last chance to get this TV below $3500. Harvey Norman and JB seem the only 2 retailers still have stock. If you cannot get one from JB, try to price match at HN.
It is 2020 model but the VRR and ALLM are on the way. This is a decent tv and the price is too good.
Assuming it has been used for several months or longer then from my perspective, it's effectively second-hand. Part of it's useful life has been consumed when used potentially all day, every day while on display. Would you pay $3.5k for a relatively new, second-hand TV? If the answer is yes then go for it. If not then pass.