One of the choices I made, back when I made my drake mystic adept was that I dedicated some of his build towards things that made the character a
person with a
history rather than being a pure numbers game.
Part of that was buying a nexus (2 whole BP) because I had declared, that as a Chaos Mage* he'd "awakened" when he accidentally discovered a UV node in his university's network and effectively leaned how to modify the underlying rules of the universe in his favor.** So I spent 2 BP (which I would have LOVED to spent elsewhere, I started the game with a list of about 10 skills on my "spend Karma here immediately") on a nexus that
contains that UV node and also forms the part of his Lodge.***
I bent the rules of the universe slightly (but didn't break them), as these are the characters
perception and beliefs rather than what may have actually occurred. I had a good story and simply built the character (as optimally as I could) to represent that story. In the end, that nexus never came up in play, just due to the campaign that we ran, but I wouldn't have sacrificed those story elements anyway.
*I still dislike this term, but if you look at the fluff you'll realize how well it fits.
**Hence mystic adept: part of his changes were to himself (powers), others were activate-able effects (spells)
***The rules specifically allow this. Look it up.