The hp Reverb G2 is currently on sale for $150 off, at $449. It is also very good. I agree with Stepsis, the Quest 2 is a solid unit. I've had both, and I found the G2 to be lighter overall, more comfortable to wear, with better color and slightly higher resolution. The Reverb comes with everything you need; while the Quest 2 I bought several aftermarket headbands in search of more comfort, and also an $80 link cable to hook up to the PC. These added to the overall cost of the Quest 2. If you're interested in other VR games, the Quest probably has the better variety? You can also play standalone games on the Quest 2, with no need to be tethered to a PC.
Rumor has it hp is exiting the VR headset industry, which is really unfortunate.