Well it looks like I might be in the minority here! But then again I guess I have to define my terms and understanding of this thread.
First: the breast forms. Yes, i usually feel incomplete and not properly dressed without them. My forms come with clear straps so i can wear them like a bra. It gives me a wonderful bust line so i can choose to go "bra less" or wear a bra over them. I almost ALWAYS choose braless..I love the look and bounce. So what are we talking about here: the feel of straps around our busts or the busts them self?
I need the look and feel of the bust myself. Glue ons with out straps are fine too! However, I do, as Nathalie said, occasionally enjoy the feel of a satin cami with no bra or forms. Hard to feel the luxury with a bra on.
Thank goodness for technology though! With todays silicone and my age.....my breasts stay perky and do not need the support of a bra.