You're making the mistake of assuming that the primary purpose of these systems is to help you accomplish something you want. These systems are to capture a com

You're making the mistake of assuming that the primary purpose of these systems is to help you accomplish something you want. These systems are to capture a commodity to resell; you, and all the other users that engage with the system. It could be great, but until an assistant of this sort runs on your hardware, and works only for you (really hard to show), it won't be your assistant. It will be some corporation's Carnival Crier.