Your statement on more expensive hardware likely isn't true if you factor in full costs. Lidar gives you things for free with little extra processing (or power) that optical takes extra work to do poorly with higher latency.

Also LIDAR has just plain dropped in price, well over 10x, while nVidia hardware (even the automotive specific variants) have not.

https://cleantechnica.com/2025/03/20/lidars-wicked-cost-drop...