Tantalum capacitors - Who buys them?

I finally found some of these mysterious tantalum capacitors. Now that I have them, it's obvious how they are different from the regular ceramic ones that I see on circuit boards.

So, I'm clipping them off these mid-grade boards and putting them aside. The few posts on here that talk about them mention them going for $50+ per pound. The rest of the posts mentioning tantalum talk about where to find them, what they look like, etc.



So - who buys these things? Is anyone really selling them, or is anyone even saving them?