Maybe part of the bow tucks attraction is it only takes 7 - 8 hours to make. (Or so I understand from the board.) Some times it's nice to be able to complete a project in a short amount of time. It gives you a feeling of accomplishment.
On a personal level, bow tucks are one of those things I see other ladies carrying and think they're cute but know I would never use it. I don't coordinate. I wish I did, but I just don't. For me, it's jeans with a t-shirt or sweatshirt and the hair is a braid or a pony tail. Bow tucks are too fancy for me.