There was an interesting article in the Bangkok Post by Komsan Jandamit which suggested that Don Mueang airport is "looking weary" these days and suffering from wear and tear. Judging from readers' comments many agreed with this observation and suggested it could perhaps do with sprucing up.
I haven't used the airport in recent years and can't comment on its present state, but considering it has been in existence for 112 years and is one of the oldest functioning airports in the world it's hardly surprising it could be showing a few signs of old age.
