I don't know if I specialize in them but I do collect old soda coolers from 40's to 60's. I have over 80 in my collection. I started collecting Ewaste after seeing so much of it on my many picks looking for coolers. The truth is, my addiction to Ewaste has surpassed my obsession of hunting for coolers. As for scrapping, I mostly only do computers and servers but can not pass on a hunk of non ferrous when I come across it.