Keeping the G12 or upgrading to the G15?

How many people are going to keep there their G12 or upgrade to the G15?

Based on images posted on DPR and other review sites (so far), is the IQ really really worth  upgrading to you?

I have seen many posts claiming 2-4 stops increase in higher ISO performance and better noise reduction, but I have not seen that in any images posted so far. And, the sharpness of the P7700 seems to be much better, not to mention the much longer reach and articulating screen! As a matter of fact, the most I have seen is maybe a 1-1.5 stop advantage, at the most. Also, not having the articulating screen is a major drawback IMO. Personally, I have decided to keep my G12 since Canon did not include a slightly larger sensor for even better IQ and lower noise reduction. Think about it, there is ONLYso much IQ, and NR you can squeeze out of those tiny photo sites from such a small sensor! Remember, hoping that theoretical improvements in specifications in cameras do not always equate to actual improvements in images taken in real world situations