I just purchased a Pochette Tikal and would like a wrist strap for the d-ring. I see the strap can be purchased for $73.00 on elux. But, the Wapity also comes with the removable strap, which I could use on my Tikal too. And I would have a wapity for $262 more. What should I do???? I know many people here like their wapity! If I were to go w/ the wapity, should I do the black or the white? Thanks!