These things are gonna get morphed into maybe HPS fixtures or worse yet, heat sinks for the newfangled LED street lights, lol. Or maybe soda cans or whatever.
Hey rather get them junked...into landfill into nothing? Or rather have them reused? You can't really save EVERYTHING! If you wanted to save EVERY STREETLIGHT in the USA alone....you won't be able to even store them even in a Football Stadium...you'll need EVEN BIGGER STORAGE THAN THAT!
I'd be going nuts! I visited the RIDOT (Rhode Island Department of Transportation) warehouse and there was a huge pile of M-400R2s, OVM, and possibly M-250R2s and OVS. They guy asked if I wanted some, but that was unfourtunatly before I was into lights. I don't know if that pile is still there. The last time i went was 5 years ago when I was 8. Maybe I could try agian some time. I know for a fact it was all HPS though because that's all the state has used for a while. No utility owned lights here, all interstate lights. Still, it was a nice pile of good older lights.
You pay the scrap value, based on the mass. Same as any scrapyard. Sometimes you pay, other times the amount is so small the guys might just give them rather than have the pain of all the paperwork they have to fill in.
I doubt a lineman that has been working all day at a hard job is really going to have to pay their own company, the company want's to keep their workers happy after all. Here I know several companies that will give lights to me without any charge.
It depends on the person. If the contractor is cheap, he might not be willing to loose the $10 for scrap. If he's generous, $10 isn't a big deal to him.