Boredom drove me to take some photos and start this thread.
I'm a huge fan of the AT-AT. I love it so much the ONLY modern items I own or care to own are AT-AT walkers. I recently added the new 2010 Vintage Collection AT-AT, with the cool vintage packaging. I decided to get all three out (ESB, POTF2 and Vintage Collection) and take some photos.
It's obvious that Hasbro made some pretty big strides in shrinking the boxes. The ESB is simply an enormous box, made so large I suppose by the fact that it had to be boxed pretty much fully assembled. However, the 1997 POTF2 version is about half as large, despite the fact that the toy is pretty much the same.
The 2010 version is a toy about 50% larger, yet is in a much smaller box due to the legs being disassembled. However, it is a LOT heavier.
I'm guessing anyone who got an AT-AT as a kid for Christmas or birthday must have freaked out, just with the overwhelming size of the box. Unfortunately, I didn't.