I remember my friend showing off his new Roomba (vacuum cleaning robot) It was about 4-6 inch high, so my first thought was "how often do you have to empty it?" He answered "A few times per room, but we run it a few times a day so there isn't much stuff on the floor". I asked "How often does it need charging?" "About every 30 minutes or so", He replied.
I smiled and nodded, told him it was a great purchase. I lied, it was a fucking retarded purchase but i didn't have the heart to explain why it was so daft. Plus, i would have sounded like a cock.
On convenience tech, which IMO, should be mainly for the old and infirm, most people use it to 'free up time'. But with that time, they watch netflix or get in to twitter arguments. Manually cleaning, hoovering, washing up etc etc, is very good for the soul and the mind. Slapping on the Irobot, Dishwasher and self cleaning oven, just to sit and binge Netflix, is very, very bad for the mind.