I'm sorry, should have been clearer. The Spot robot with a manipulator arm (which has been used in some home projects before, see [0]) I believe totals up to about $200K. The base robot is $75K, which is what you linked to. I mentioned that figure because that seemed more relevant.
There's a knockoff for $23k though, so hopefully this one for $20 makes competitors available for cheaper.
https://robostore.com/products/unitree-go1-edu-plus-3d-lidar