There are two dumps within a half hour drive from me. One is a landfill that has a metal pile that was awesome for high grading. I say was because now they have a chain link fence with barbed wire and a weigh scale and don't even think about scavenging. There is a "share shed on the place where you can leave items for free that someone else could use. You can take stuff from there for free. I don't think it matters much if I take an old tv or computer tower to scrap as opposed to actually using it as is. The other dump is a transfer station with a metal area and a share shed. There are old faded no scavenging signs but the scrappers don't pay any heed since there are almost never any officials around. I suppose one day this one will be off limits as well, but for now it pays to stop in for a look.