The one on the right (the 10th Anniversary Edition) is quite a bit harder to find, IMO. I'd say for ever 10-15 normal ones you see, you might see 1 of the Anniversary Edition. If you've ever wondered which manual came with each version, the 10 Anniversay Edition comes with the one with the black & white cover.
I've also noticed the box seal variations as well, and will be scanning those in once I get to box variations, lol, whenever that happens!
-Dain