A third of the Palestinians just in Gaza are living in refugee camps. The disposition of these refugees, and the Palestinian assertion of a “right of return” to Israel is a hugely contentious issue. The Palestinian acquisition of the Halutza sand dunes through land swaps could confer a great deal of benefit regarding the refugee issue and others.
Maron, Ethan F., "Home, home again: Palestinian refugees and a Halutza-like swap " (2004). Macro Center Working Papers. Paper 16.