If you could live forever. Would you?
What if you had to live your life in darkness as a pale ghoulish creature? Some would even call you ethereal with your pasty mangled looks. While sucking down warm raw metallic tasting body fluids for nourishment. As you can tell. Vampiric habits sound downright nasty to me. But don't mind me, I'm the person in the corner eating soup with cooked gelatinized blood cubes.
There you would be, living on with the slow unending march of time. And time, time would become marked by the comings and goings of the ages. While you were surrounded by endless death. Pets, parents, children, friends, all those that didn't follow you into the endless night would inevitably leave you for dust. Your experience of the world would be halved. You would be able to listen to the sounds of the ocean but never again would you see the glitter of the sun as it raced across the waves. No skydiving, no rock-climbing, no windsurfing, and no eating food!
Ok. I admit being unable to eat food would be the deal breaker for me.