I never much liked white Apple products (I should say, white MOBILE Apple products, because I like the classic iPod and the iMac aesthetic), but I happened to get a white iPhone 5, because it was available sooner and at a better discount and then ended up also getting a white iPad Air for the same reason and I'll admit that white has grown on me.
I bought the silver sport watch with the white strap for two reasons
1. I was sure that they would be in lower demand and therefore be more likely to arrive on time.
2. I figured white was a nice summer strap and that the silver watch would go better with the light brown leather loops (getting married in a couple of months and that'll go nicely with my waistcoat, hehe)