The comment below from trostparadox explains a little bit more about why price shouldn't be the underlying factor for POB. Its a good read.
@trostparadox/qrwdpi

I think the two-token model is quite different from what we currenly have and I wonder how well it will do against the original. He expands on how he would of wanted to change of brain tribe so it doesn't rely on price. I think maybe number 2 of his 3 options on getting things done works the best but I don't know. It would be different from what we normally know though.
@trostparadox/brainstorming-how-to-calm-the-proof-of-brain-storm-part-2-complex-version