It's 7 million refugees, and I don't think $6k is very much.
The constant state of violence between the two people has created a big opportunity for extremists on both sides. These extremists draw much of their power and influence from the status quo of dehumanizing and wishing death upon "the other" so ultimately a deal where refugees are compensated for their land somehow would require Knesset extremists (and Bibi) to abandon settlement expansion they aren't willing to pay for, and require authorities in both Gaza and the West Bank to accept the cash deal on behalf of their constituents. I don't see extremists giving up their power base like that. Not without some kind of miracle.