Hmmm.....I can see why you're torn! Do you a have a spring/summer bag? I know mono can be worn any time, but it's nice to have a classic bag for the warmer months. The Speedy is definitely a classic. I had tried both, but since I already have several mono pieces, I went for the Speedy. I don't know anything about denim transfer. It hasn't happened so far. If the straps had been longer on the PM, maybe I would have gotten that, but if I can't carry on my shoulder, it's almost like having another speedy, only it would hang further down and maike it easier for someone to grab, since it's so obviously an LV. Most people don't recognize the Damier checkerboard. Then there is the price, the Speedy is a bit cheaper, but that's not really a deterrent, if you're spending that much money. Good luck.