Lowest historical price according to pricespy. Linked page is for headset only.
Headset with controllers $899 (also historical low):
https://themarket.com/nz/p/hp-reverb-g2-virtual-reality-head…
Headset Only $799
https://themarket.com/nz/p/hp-reverb-g2-virtual-reality-head…
This is from Noel Leeming. Not sure if there's any active coupons for the market or if it can be beaten in price at another shop to get it slightly cheaper. I will update post if comments indicate this.
Reverb G2 uses inside-out tracking — the headset itself can 'see' where the controllers are using it's built in cameras and sensors. See the review https://www.youtube.com/watch?v=__nfD58GF6Q
You don't need to purchase any additional equipment like lighthouses or valve base stations.
That said, your default purchase should be the VR headset + controllers bundle, buying the VR headset itself and buying the controllers separately later on means you end up paying more in total.