Fatshark Dominator V3 FPV drone goggles [amazon.com]
$299.00, no tax, shipped and sold by a third-party but fulfilled by Amazon. Prime shipping.
You can purchase directly from Amazon for $299.01 +sales tax if you prefer it for some reason. Still cheaper than most online hobby stores and backed by Amazon for returns/shipping.
Hobbyking for comparison sake runs $394.16, Horizon Hobby $349.99, and other third sellers for $329.99, no tax, if you hunt around on Google shopping.
Lowest price ever per CCC.