I never really understood why a computing model arranged around large tablet computers with keyboards and mice never took off in offices, let alone home environments.
If you look around, you can see reasonably spec'd android tablets from around the £100 mark retail, and some of these come with keyboards bundled. OK, the screen is a bit small and the keyboard is generally crap, but you can use as good a USB keyboard and mouse as you want. I cannot imagine that in this day and age of cheap LCD panels, marrying up a 16" or larger full HD panel to the electronics in a cheap tablet would be hugely more expensive at scale.
With the rise of VPNs and office applications delivered through a browser, I cannot understand why these have not dominated basic workstation deployments. I mean, it's not as if a majority of people with screens and keyboards on their desk in a call centre or basic office job actually use more than a fraction of the power of their Windows PC. Put these devices on every desk, and make them fixed with the user's environment mobile, as in the days of disk-less workstations and X terminals, any you have not tied people to a desk because the PC has 'their' setup. The way things are going, companies will be paying for monthly subscriptions to remote office applications anyway, even if they have a small form PC or laptop.
Seems to me that you could provision a fixed workstation at a much lower price than even the small/mini/micro PC's that appear to be appearing on the desks of offices, and probably have much lower maintenance costs as well.
Of course, some people need more mobility, and thus something more like a full laptop, but I'm sure a lot of basic users leave their jobs behind in the office when they leave for the day.