What Brad said
My late father switched to Audis when he was in his mid-seventies and he just loved them, kept driving them for the rest of his life and even convinced some of his friends to get them (I know a wealthy older lady who's still driving her '91 V8, won't trade it for anything). I'd have no problem recommending an Audi to somebody's parents. Like all cars, there are good ones and not-so-good ones. Sounds like you found a good one and the mileage wouldn't bother me at all.
And FWIW, there's a world of difference between Audis and Subarus (the other obvious contender). Audis are *much* nicer cars.