About four years ago, I owned a black one. It kept its color and shape amazingly well during the two years I owned it. I would've kept it, but it was one of those "basics you must have in your closet" type purchases that I never really loved.
If it's a pique polo, I would pass unless it is really long. I have the white one and just sits in my closet since after I washed it, it became a crop top.