However, Asus is widely considered a much higher quality manufacturer. Recently I decided that Abit had cleaned up their act because their recent boards had been popular with the reviewers like Anandtech so I purchased a KR7A with ATA133 RAID, 4 DIMM slots, etc. It ate a total of three Crucial modules over time before it finally died a terrible death. I researched some problems I was having before it died and found that it and several other models of their boards were very problematic.
Asus is more expensive, but only if you don't put a value on your time. (though there are certainly Abit users that have functioning boards)