Dell Venue 8 ?
http://www.dell.com/us/p/dell-venue-8-pro/pd
or 11?
http://www.dell.com/us/p/dell-venue-11-pro/pd
(don't forget case / bluetooth keyboard / mouse)
Pro:
Real windows 8.1 Tablet
Skype
Microsoft Office
Con:
Real windows 8.1 Tablet
Get it from somewhere with a good return policy so you can trial it, and return it if doesn't meet your needs.
My mother is doing well with her iPad, transitioning form her windows laptop. Sister and brother-in-law provide local tech support, and they have one too, so they know / can show her hoe to do things.
The "instant on" nature of tablets is a big win, as it eliminates the frustration related to waiting for things to boot / start up, that acted as a disincentive to trying things, and the whole anti-virus / installing update hassle. Not to mention using a printer ...
She's getting pretty good at Skyping, We're even onto positioning / camera angles (I don't want to look up your nose), and the advantage diffuse even lighting vs high contrast lighting ( don't have a lamp behind you, or have the ceiling lamp in frame).
Its good to see the sense of accomplishment she has, and interesting to see, as a non expert, what terminology she use to describe things, and the nature of her interaction with a new concrete interface, even though the abstract task is the same as before.