There is very little copper in drop wire. It's mostly iron, for strength, with a little copper, for transmission. There is a newer version that has two 22G pairs, but it was invented recently, say in the last 25 years, and there is very little of it out there. The real money, if you were to salvage anything, is the billions of cable feet of lead cable with copper conductors, that is buried all over the country. It would probably take as much in labor, equipment, and insurance, to salvage it as there is value in the product. (Until copper goes for $10 a pound...then it would be worth it.) Believe me, I've thought about it a lot, and I know where a lot of it is buried.

Arthur P. Bloom
"30 years of faithful service...15 years on hold"