If you'd seen how my (honorary) mother in law drives her Polo, you wouldn't give too much credence to the 'single lady owner' spiel.
Given how every forward or backwards manoeuvre seems to be carried out with the engine at 5k rpm, I can only assume that she has launch control in 1st + reverse gears!
She would have fitted more than 100k miles of wear into that genuine 14.5k.
When I was looking for my car, there seemed to be quite a wide price range for similar spec + mileage cars in the main dealer network, so carry out plenty of searches + comparisons to get a feel for prices...and be prepared to travel - I live in Bath, but bought my car in Nuneaton.
Mind you, given the car values quoted on this site nowadays, it looks like I've still lost a lot of money due to depreciation in the last 7 months - Gulp!