Hey girls ( and 'girls' ) - Question. I'm going to pick up a Damier Keepall in September as a birthday gift (for myself! ) and was wondering if you guys have any experience with the straps. This is going to be an airplane travel bag, and I'm not sure if I really need the strap, although the larger size might be nice. The extra $250 isn't really an issue, although I'd rather spend it on something else if all else is equal. So my question is, is the strap (and the extra couple of inches) worth it?