A year may not be very long, if you're not doing many miles, but I'm sure spoke pattern and tension comes into play here as well, but yes mine failed just like the one above....also campag gear is not made for people over 80kg...it says so in their guranatee!
i'm 68kg, spoke pattern front: radial, rear: radial/2x
clearly sheriff''s not worth spending money on if you are fat :))