I was curious about this and did a search here and came up with nothing. So I went on to Google and found that some places might take them by the bucketfuls for the steel. I also found out that some contain small amounts of platinum in them. Although I didn't look into how to get this out as it seems like more of an e-scrapper type of thing. Collecting small amounts at a time of the really good stuff. So just a heads up incase anybody wants to look more into it. I'll just set the few I got aside for now.