But all I've seen so far have been with the white am3 socket.
Probably because the companies figure the Intel chips are for the highest-end gaming market, and they want to emphasize the premium-ness with cool designs.
Designs, schmesigns, a mobo isn't a piece of art. You want art go to the gallery. Mobos are basically and ultimately tools. Their function determines their form. The medium is the message (Marshall McLuhan). It is only serendipty that they have any aesthetic.
But, alas, beauty is in the eye of the beholder.
Give me an ugly bitch that can OC to 6.0 GHz and be damned with your ideas of beauty.
And I think that the Sabertooth is ugly too. It has problems with SLI despite its specs.
I remember someone complaining once that Intel boards had great chipset coolers. They used heat pipes that made the board look good. Most AMD boards just use a HSF on their chips. Are you going to fault the lower power found on AMD boards? I actually found an AMD board with heatpipes, but it uses a more power hungry Nvidia chipset.