What’s a point worth?

Mulling a change to point costs in the character creation rules for G&F – the simplicity of Everway‘s approach is appealing, but I’ve been rereading Nobilis 2e for inspiration as well and I’m torn because Nobilis has a more robust ability creation method that would raise the prices on things. (In Everway, a power costs up to 3 points, or maybe 4 at the most if it’s really potent), whereas Nobilis can price some powers on a scale that goes up to something like 8 or 9 points. That would require refiguring what a point is worth in terms of character potential and how many to give a starting PC. I like games that start out with powerful characters, so I’m not averse to the idea, but I don’t want to break things by not giving the scale proper balance.