I read through most of that stuff and from what I gather it's 1/3 retarded people as always, not reading that the ram they purchased needs 2.2V, or not knowing Vista sucks. Another 1/3 has to do with BIOS issues from 3 BIOS's(?) ago. AND the rest of the 1/3 of the people complain about things that just don't matter like it doesn't have the fancy LED's on the back or something, and there are people who always think there is something wrong with the board but it might be their PSU or just plain old Microsoft. I would also have to assume though that there are some of these boards that are just plain defective.
Don't get me wrong though I'm NO abit FANBOY, but I really think the 650i boards are more along my tastes for what I do. I want things to work right and if this board doesn't get it's crap together then maybe it's not for me but I do like red and I dunno when the P6N V2 will be out from MSI and the Gigabyte board looks kinda meh. The Asus board is along the lines of the ECS board for me...doesn't come with much to tickle my fancy but then again I can't stand ECS. Although the 680i LT is sweet I think it's boards are either boring or too expesive(DFI).
In the end though even the best boards can have there faults. 99/100 aint bad.