I have to ask what would impress you? I am not a Sony guy, but I can't imagine a camera with more features that resembles a hand holdable body.
Because they are equipping the same bodies with new sensors and processors and ask much more for it. And the A9 and A9II had to be held back for video, to not "interfere" with this "all-in-one" concept and rebranding. That was their vision from the start. This is no different to what Canon is doing regarding the Cinema line with overheating, etc. but for some reason Sony gets away with it much better.
Yes, the technology is absolutely cutting edge, but that is exactly what you are paying a lot of money for and not more. They still reserve a lot of improvement in other areas, some issues are still there.
And of course when you are paying this much for the camera body itself, psychologically the lenses don't seem to be as outrageously priced anymore - even though they are in some cases, the body and lens pricing support each other better this way.
It is the same "quick inflation" we saw with smartphones as well. At some point we will see an A1II with 8k60fps enabled as the sensor is capable of it and the MSRP may be less at 6000$.
I had thought the A7SIII 3500$ price was quite high considering it is all-in on video and not photo, but now it can be marketed as amazing value for video - because it sort of is considering all new cameras are this expensive since people are willing to pay for them.