Great collection and I admire the tenacity to complete it.
They would need special equipment to make them, and need to recover the tooling cost.
All of these coins are the same with the exception of the year from an engraving/tooling perspective. The difference is in the decal applied.
It is the same as the Hockey quarters from 2006/7 and the Occasions quarters from 2007-2010.
I was happy to see the return of the engraved quarters in 2011 and the end of this dollar series. It is one thing for a coin to have the Reverse design primarily painted/decal if it is a one off (2010 Vancouver Lucky Loonie) but for an entire series within a date differing only in the decal is a bit cheap regardless of the packaging and subject matter.