What might one of these get?

Anywhere from 50-300million. I think one went for 300million, it might have been 150million. I dunno. But those are the prices that they have sold at.

I bought one for 120 million, but that was months and months ago.

I've seen one or two in shops lately at the 50m mark. But since they're all sold out, it's not unreasonable to expect that it could fetch more.