Casascius coins still don't get the respect they deserve in my opinion.  Probably because a lot of them were given away early on so there are a lot of people who have them and don't value them, leading to lots of sales at low prices (in BTC terms).  I don't see anything on the horizon that will reverse the BTC premiums on these coins dropping, but I do know that a day will eventually come when you can't find them for any price and they will be coveted.  Who knows what the catalyst will be.  Maybe a celebrity will fall in love with them or some rich Saudi Prince...  Maybe this year or two decades from now.  I'm certain the day will come.  The question is when and who will be left holding?  Will you be able to resist peeling if BTC hits $500K or $2M?