This is an interesting conversation on the psychological level (sorry guys :P). I admit, I don't have any emotional attachment to my avatar; I just found it funny... you know: what happens when you cross Batman with a rubber Ducky? Even thinking about, I'm laughing for no reason.
Cog, what's the main idea that separates us from robots? It's the fact that we're created directly through a scientific miracle while they're created through resources from the earth. This, in itself, has direct connotations that surpass general understanding. To apply MBTI, humans are wholly capable of possessing varying strengths of all 8 aspects, also at random (as far as I know), while robots can only possess a limited number of them with F being the most difficult to replicate.
Not only that, the idea of being broken is strange to us as well. When we're broken, we fix ourselves naturally- robots require direct assistance from man. What's the point of immortality if you can't fix yourself? Species have survived the last 6ish billion years because we're able to adapt to change, because we can mutate, evolve, and heal. Robots (at least at this point) can do none of those on their own.
This is why you're human, not robot. Why not cherish that fact?
Honestly, I wish you the best in your pursuit of immortality through robots, but here are some kinks you may want to consider. Also, this is what I think of whenever I do feel like a walking encyclopedia (read: often)... I realize that I am among the dominant race on this planet and I take pride in that fact. books don't rule the world, nor do computers- humanity does. This makes me feel human more than anything else... laughter helps too :P