To many cyclists, their bicycles seem to take on a life of their own, they treat them like old friends. To me personally, I don’t think of my bikes as being living, sentient beings. But I while I will never think of a bike as being alive, I assure you that they can be dead.
Take the bike of 2008 Dead Baby Bike Race winner Jacob Dwyer. I ran into him as I was leaving the greatest video store on the planet, Scarecrow Video. He showed me his road bike which was broken clean through the seat tube.
This bike is dead.
I had a friend that had broken 13 bikes in about 18 years. I myself have only broken one, but I tend to turn over bikes fairly quickly.