There is also the example of Evo Morales of Bolivia, who chose not to move into the Presidential Palace, and still lives in the same small modest apartment with his wife and roommates.

See picture of the apartment here: http://estaticos03.elmundo.es/suplementos/imagenes/2006/05/0...

Original article in Spanish newspaper El Mundo: http://www.elmundo.es/cronica/2006/549/

Translated version here: http://www.ibaibarriaga.com/reportages-detalle.php?id=11