your cons list is dumb.
- You can counteract "shaky images" by using proper technique and the shutter speed = 1.5 times focal length rule and never go below 1/60th, tripods, monopods, OIS. There are a million ways to counter "shaky images"
- High ISO does take a hit when you increase megapixels however when you downsample 24mp to 16mp, you get cleaner and sharper images than just 16mp images alone.
- There is no relation between megapixel count and autofocus speed! NONE!
- SD cards are cheap, cheap cheap! You're complaining about spending $20 for a back up SD card on a $1400 camera??