I agree. Captions often work well, particularly with a series of photographs to inform the viewers interpretation of pictures. They can also work to subvert the 'meaning' of a picture which might come across visually obvious otherwise. Of course, if we're talking about decorative landscape pictures, a caption is useless and it should stand alone above the couch. But abstract or illustrative straight photographs often benefit from a subtle, even poetic directive.
Originally Posted by CPorter