Hopefully this is helpful:
When my wife needed a "new" car, we found a 2007 Honda Fit. It had around 200,000 miles, a manual transmission, and was single owner, a female in her mid 30's, who was (she claimed) just looking to buy a more grown up car (an Accord). To me, this is almost the ideal situation.
We've had the car for perhaps 4 years and 50,000 miles, and it has needed nothing. I did a few preventative items such as spark plugs, an air filter, transmission fluid change, and figured I'd do new brake pads and rotors while I was at it (cost maybe $30 for the parts) even though the ones on it still had life.
Even perfectly reliable cars need things periodically though, and a 200,000 mile car is likely to be closer to the replacement point for a lot of little things, such as bushings, shocks, bearings, maybe even (in the case of a manual) a clutch. None of these are big ticket items, but I would be prepared for them to happen sooner than on, say, a 100,000 mile car.