I'd stay away from soft white leather- i have three cream bags, all destroyed from semi-regular use. I finally learned my lesson.
Aww that's too bad I have a cream Kooba and I've actually found it really easy to keep clean, which is why I am considering the cream Bianca.
i'm really unlucky. i tend to ruin expensive items the first time i use them. Someone w/a pen walks into me, the stamp on my hand (from a bar) rubs off onto my bag, i have it against my jeans and it rubs off, fragrance oil spills inside and wipes off the finish on the outside...yes its all happened.