Re: "The main problems..."
"So when they realise they have a crappy failing business model that doesn't provide any recurring revenue they can start charging for storing video"
This. everyone wants another revenue stream. The fact is, there are apps out there that will coordinate RTSP streams from multiple cameras to a storage device ... no 3rd party internet required. But those manufacturers that DID support that in their cheap cameras , INCLUDING MI, have removed that functionality so that they could charge you for cloud storage and viewing. That is a big steaming pile o'crap that is really killing the home security setup, as well as any sort of privacy.