One of the major advantages I find is that irrespective of what I do with the results taking photos makes me look around and see more. As most of what I take would come under the category of record or street photography I'm constantly looking around and up and down for things of interest, to me. A possible disadvantage might be that it often takes me considerably longer to walk anywhere than many people as I'm constantly looking about for a potential target. Most of what I do are probably only of interest to me but I delight in the odd and unusual and am constantly amazed at the amount of originality to be found in our streets much of it completely ignored by those passing by. Oh and of course I enjoy taking photos.