Ryno and Billy Dual Relic

Here is my latest relic pick up...

...from 2009 Sweet Spot.  As you can see, its a dual relic with two of my favorite Cubs, Ryne Sandberg and Billy Williams.  And as a bonus, the William jersey piece is from a Cubs home jersey (instead of a green A's jersey.).

What price would you put on a relic card featuring two Hall of Fame players?  There's a BIN of this card priced at $17.99.  It's been sitting there since February and will probably be sitting there a while longer.

I paid $6.75.  That comes to $3.37 per HOFer.

Do unnumbered relic cards have any value left?