My sister and her husband are still using a MSI K7N 420 Pro nForce Pro Socket A DDR 266 MHz board that I built for their wedding in 2002.
I just recently upgraded the memory to 1 GB and the CPU to the fastest it supports, an AMD Athlon XP 2600+.
I'm amazed the thing is still working but it really hasn't had a whole lot of use since they don't game.
No Manufacturers builds their boards to fail, sometimes you just have better luck with others, as any maker can have a dud or poor quality control on a single line.
That said, as you can tell by my Sig, I've always felt ASUS had the top of the line boards.