Revision1.04 or Revision-2.0?

[unbiased]

I had ordered A7N8X- Deluxe(Rev2.0) but I have been delevered Rev.1.04.
My question is

1) Is the revesion -2.0 any better except support for 400 MHz FSB?Is it worthwhile to go to the headache of getting my board replaced (from a very unwilling dealer) or will it be OK to just update the bios?

Any comments are welcome.Thanks in advance.