I'm a big fan of wraps.  Hence my current fascination with faux Mexican food.  To me, the bread portion of a sandwich is merely a holder.  Something to keep my hands clean.  Perhaps my attitude would change if I ate some unbelievably great-tasting breads, but as it stands, bread is a functional food, not a pleasurable food.  Wraps simply take the concept of bread and make it better.  Instead of just covering the top and bottom of a sandwich, they wrap around it.  Instead of being half an inch thick (give or take), they're something like an eighth of an inch thick.  If given the choice, I'd choose a wrap over bread in pretty much any situation.