I think that in the long run, these brass coins will be the most interesting for collectors. You should launch ones with new themes every year.
We will likely start doing that. For a long time we had the problem of relying on 1 mint which is not even producing coins primarily but other metal items. And their other business is big and doing quite well so our orders are not high priority. Now we are making new coins with 2 new mints that are both professional coin makers. This allows us to make new type of coins much faster.