Now why I didn't I think of that? Good job you did DM as I have noticed another difference.
Revision 1 supports ECC memory whereas rev 2.0 & 2.1 don't.
And another thing to consider is: Will you still be able to get hold of the Rev. 1.0 board? My guess is that you won't be able to, as this version would have been the first ones shipped by Gigabyte.