The wife has my old iPad 1 64/3g and I've bought the new iPad3 64/4G so 2 iPads in this household, I also have a Android Galaxy tablet too. TBH we have far too many toys, I spend a fortune on upgrading my PC every 18mths or so, and we have 2 laptops and a Acer notebook, none of which gets used that much, PC & ipads being the exception. I think the old saying...more money than sense springs to mind..lol. What is likely surprising is that we are both pensioners in late sixties, though I did have a computer business for many years and still do a fair bit of programming (C/C++ & SQL + web design, currently playing around with Apples SDK tools for doing own apps) though admittedly more of a hobby these days.
Even in old age.. your never too old to enjoy yourself, it's important to keep the mind active even if the body is less able, and of course if yourv'e worked hard for 50yrs you should have managed to accrue a little cash so you can afford one's toys, if you haven't by our age it's unlikely you ever will...lol so yes, I love my toys and cars for that matter & still do a lot of on-line gaming too on the PC & PS3's, IOW being in sane mind, I spent it all before snuffing it..
As for use, well the iPads are mainly used for web browsing when away from PC's, I also have about 38 of our favourite films installed which come in handy when away on holidays which is often. I also use my iPad for online game chat using Teamspeak when I'm playing games online. I also like the convenience of just being able to have a quick browse on the web when relaxing on the settee, or for streaming live TV etc. In addition my wife also enjoys playing her daft games on hers, she has quite a few installed, such as Scrabble, Yahtzy, chess, card games etc.. it keeps her happy, tho she uses our 2nd ps3 and her Nintendo 3DS for gaming too, and remember wer'e nearly 70ys of age..lol... the grand-kids love it when they visit...lol