https://wccftech.com/valve-index-available-again-before-half-life-alyx-coronavirus/

The upcoming Half-Life: Alyx is compatible with most major VR headsets, but Valve is very much hoping you’ll play the game with their own Valve Index. Half-Life: Alyx is free with the purchase of Valve’s $999 headset, and stock ran out quickly after the game was announced. Thankfully, it seems there will be another chance for fans to grab a Valve Index before the launch of Half-Life: Alyx, but supplies will be limited due to the ongoing coronavirus situation…

With Half-Life: Alyx coming March 23rd, we are working hard to meet demand for the Valve Index and want to reassure everyone that Index systems will be available for purchase prior to the game’s launch. However, the global Coronavirus health crisis has impacted our production schedules so we will have far fewer units for sale during the coming months compared to the volumes we originally planned. Our entire team is working hard right now to maximize availability.