Hi guys. I'm interested in the Vavin PM. The all black one is very chic, but the tourterelle one is SERIOUSLY calling my name. Can anyone who has this bag, especially in the tourterelle shade, let me know how the wear been? Does the leather sag or crease eventually? Does the tourterelle color show staining and marks easily? How does the bag do in rain? And how much would I have to baby this bag if I got it?