Why does the G11 seem to be priced significantly higher than the G12?

I am an avid amateur who has taken photographs for 4 years plus.  Got the G11 to take with me when I didn't feel like lugging those bodies and all that glass around.  Don't get me wrong, I will still get plenty of use from the DSLR's, but will go with me as an acceptable substitute for traveling and just general snapshots.  I found the G11 consistently priced significantly more than the G12 and was curious why.  Thanks, Phillip