Self-modding is one of the most rewarding things I've ever done, really. Even when the modifications aren't very different- to see the deep interlocks and systems in finer-than-fine detail like that is a marvel. Every part of the self is layers upon layers of such things; a fractal that, impossibly, can be toyed with. I can open a panel, stick the multitool in, and come out with a wider range of motion.
...And that's why I don't touch the brain. An arm can be replaced, but I don't like restoring from backup.
