I recommend getting an inspection on any car you are seriously considering. I have seen some pretty shifty stuff happen on seemingly "perfect" cars. wrecks that didnt show up on carfax reports. items left out of service history.
innadequate/temporary repairs. etc...you never know. It happens, but it is pretty rare that someone gets rid of a perfectly fine vehicle for no reason. their reason could be that the car just drives "cheap" to them. in that case, you are good to go and as long as you know what you are getting, you should be happy. I find it wild that someone would take a large financial hit on that kind of situation, but it happens.