>>103635720
The milking machine has been around for a while but a full sized body without relying on internals to do the work is mechanically very complex and relies on a lot on instinctive motions and intuitive design. Things that rely on very expensive to replicate sensors and enormous data sets. People are more than capable of injuring each other in all sorts of ways and sometimes they actually do, if she's too shallow or your dick found a bad angle and she lands with her bodyweight on your dick it's likely to snap that could give you incurable mild to severe ED. Friction is another thing that has to be just right that also require expensive sensors to reliably detect, then there's the actual climax where some people like more stimulation while others like less, some barely any at all or it will ruin their orgasm completely, all communicated non verbally during the act.
If intimacy is the thing you're looking to buy you are for the foreseeable future better off spending money on high end escorts, at the very least for the next 25 years.