Brother, Engine, Suspension, Transmission, Body condition, etc. Should be the yardstick for good condition of the car, instead of odo reading.
No doubt, with the passage of time, things age and its normal, but if a car has always been well maintained and driven with care, then one will not face issues. Cars are also machines, and like every machine, they need care and maintenance.
A poorly maintained car with may be 30-50,000 Kms can be quite problematic and bring headaches to the owner to be, in comparison to a car which has always been well maintained and may have 1.5-2 lac Kms on odo; irrespective PKDM or JDM or USDM, etc.