Why did I sell Nissan Teana 2? Cons of used Teana J32 with mileage

More details about the pitfalls when buying "Nissan Teana (J32)". Why and for what reasons they can sell or simply "get rid" of a used car called Nissan Teana of the second generation (2008-2013 years of release). We are talking about the problems and weaknesses of a used car.