I also really like the 4:3 aspect ratio. With my print sales I try to stick with traditional sizes like 8x10, 11x14 and 16x20. Cost is significantly lower to print which means higher profit margin. While the sensor is smaller, I'm cropping off much less, at least 25% less, so I'm getting more out of each pixel. Not putting down 6x9, there are times it is needed, but this makes my compositions much easier and reduces "waste". It's REALLY hard to try and crop a 6x9 image that you really like! I fill each frame now without fear of what I might have to cut off.