Like some cars, the parts of the car are worth more than the whole of the car. Unlike computers where the opposite seems true.
The technology does exist. I've had a $100 TV with built in DVD player. Lasted about a year before it started making weird noises. Optical drives are a bit wonky too, the lens gets dirty, the motors wear out. So to some degree you want separate items. Just like the mic, the cable, interface, and the computer/recorder are all separated. Although some mics do combine some of that into a nifty little USB cable, but introduce a lot of limits in doing so. Latency, no monitoring, and otherwise cheap components all around, except for maybe the mic element.
We could do lots of things. Including cloning a human. Existing technology today for all intents. But there are some things better left unexplored. Like turning the earths surface molten with WW III. Existing technology since the end of WW II. Way before I was born.
I doubt we'll see it anytime soon IMO. Life is boring enough at regular speed.