One-shoulder: Fashion must or must-not?

One-shoulder/asymmetrical is definitely back in style! But is it really a must or must-not. I'm sure guys don't understand the allure of a one-strapped dress and they are an honest-to-goodness nightmare to wear for those of us not daring enough to go bra-less, but I'm going to have to declare this a fashion.....MUST! They add instant edge to any outfit, they highlight the collarbone (which can never look fat ♥), and are just overall more visually stimulating.

My "why can't I be rich?" pick:Michael Kors Jersey Dress
Bergdorf Goodman
$1395.00

My "on a budget, but still fan-f*cking-tastic" pick:Studded one-shoulder dress
Forever 21
$22.80