Uh, no. Lenovo and Samsung manage to make better HMDs than the Rift S for 250$. The only disadvantage they have is slightly smaller tracking area, but that's not cost, the cameras are like 2$ each.

The only reason the Index costs 1000$ is because its absolutely cutting edge and its controllers and tracking systems are expensive. If it had inside out tracking and normal controllers it would be around the price of the Index.