Isn't the a99 still carrying non final firmware?
I would not care too much about the moiree or aliasing. Final viewers, including clients, will not even notice. And, if I have to shoot something like scene at the grocery store, I would use a proper video camera or use a wider aperture, so all those cans on the shelves, that are very distracting anyway, would be slightly softer.
Stick a fast prime or a proper Zeiss/Sony zoom and use this camera for what is meant to be used, you will not even have to worry about moire and aliasing. :)
For stills, the quality of its images is stunning though.
At this stage, I would say, only price is a few hundred dollars of the mark. although the yen lately has been appreciating and that does not bode well for our USD or Euros. I think that is also one of the reasons why the new 5D is 3500 dollars.