We have a largeish laptop as our main computer.
I have an iPad which I love, but my mum (aged 85) had an iPad mini for Christmas and I think that's better. (Mine is bulky and heavy in comparison). She uses FaceTime to chat to grandchildren and greatgc.
My OH has a Nexus7 which is great, amazing picture quality.
I also have a kindle with a lit screen- great for reading in bed if OH is asleep. I can look at kindle on my iPad, but don't because it's not as easy to hold. That'd be better on a 7inch tablet.
There's just too much choice- it's baffling!