I didn't mean that it would just disappear, though reading back my wording may have seemed so, but if you've ever dropped anything in sand, you know it tends to bury a lil bit. Something black would still be a bit more visible where a desert tan knife would be harder to find. Even an OD green blade would be easier to find. With the tan blade and canvas micarta, I wouldn't wanna be sifting through a lil bit of sand and end up grabbing the blade instead of the handle. I'm sure most of the time this isn't a problem, and it all comes down to personal choice and what you are comfortable with. Just pointing out a reason why Military personnel might prefer something other than a completely tan-colored blade.
Kyle.