[AndyIngram]

.19c vs .10c for the old one but they will last 2.5 times longer. And the polymer and is from Australia. source http://calgary.ctv.ca/servlet/an/local/CTVNews/20110620/boc-...

[jarek]

Because I had to check the link myself... The costs are 19c and 10c respectively, or $0.19 and $0.10. 0.10c would be pretty cheap.