If there is enough demand, do have a specific reason why both cannot be produced?
No, but the reality is that we have struggled to build demand to order one run of both metal finishes in the past.
Why not do one run of one and one run of the other?
Because like he said, we've struggled to get enough orders. It's the setup costs for the 2nd design that would be a killer IIRC. The pricing fo nickel and brass are similar. I remember because I once asked a similar questions about nickel availability and since the nickel coins are just nickel coated brass, it's not a big difference.
I'm not speaking for Santoro of course, but I'm pretty sure I'm right about it being the set up costs and minimum orders he'd need for 2 designs that make it prohibitive.
Great designs this year by the way! I really can't choose between Dstone's and MrC's either....