Note it's not the milage it's done, but how much is left in it.

I wouldn't touch anything over 100K & at 190K this car has very little milage left in it.
At that mileage it would be exactly like buying a lottery ticket. No telling how much more you'd get.

Although the same is true for any car you buy, once you get over that 100K mark, the odds of trouble increase significantly.

Cars just wear out, despite how well it's been looked after.