Selling Crate-To-Own guns

I'm a little curious why this hasn't been implemented as it is...

All the Crate-To-Own weapons (Desert Eagle Camo, AUG A1 Camo, Andaconda Adv, M4A1 Custom, Kriss Super V, AK-47-Scope) should be sellable. Since these can be won time and time again, and can't be gifted, well...I mean, what's the point of having the extra weapons, then? There's none, really.

Note that this ONLY should pertain to the ones you win out of the crates. The ones you can buy with coupons, on the other hand, should NOT be sellable (Saves you from accidentally selling that AK-gold you bought so many crates to get the coupons for! And you'd be a little dumb to buy multiples of these guns, right?)