Those that know about the Corsair SF750 SFX form factor power supply will understand how rare it is for it to come in stock.
Amazon has it available for pre-order for early December delivery at this time for $176.45. Combine with additional discounts such as Discover 5% or other amount off promos to reduce the cost.
https://smile.amazon.co
Note: You may have to manually select Amazon as the seller to see the price.