Why go for the A99 -- other than IQ?

From what I have seen after inspecting raw files the last days and nights, image quality for the A99 is as good as we realistic could hope for. Also, a non-issue for many of us.

Now, what else should make the A99 a worthy investment?

For me the new AF system makes a huge difference, and also the fact that this is a full frame camera, recording twice as much light at a given f-stop as my A77 and making my Zeiss 24 mm f:2 wide again!

And for you?