Winner said:
What about leaving them as homes for poor palestinians?
Not a good idea:
1. As long as the houses stand, settlers can try to re-ocupy them. They can't enter demolished houses.
2. If the Palestinians get these houses they won't use them for poor Palestinians, but for people that their regime wants to help - ie ministers and faction leaders, as well as the always popular shahids - the Palestinian terrorists. The last thing Sharon wants is to give primium housing to terrorists.
3. The Palestinians don't need western suburban housing units. If you've ever visited an arab village or an arab city you know that their building style is very different, mostly for cultural reasons (very large families living together).
4. It would be more efficient to destroy these houses and reuse the materials in order to build more dense residencies, as housing just 8,000 people in these places will not be of much help to gaza's overcrowding.
Winner said:
What happened with settlements in Sinai, after the Israelis pulled out?
They were demolished, despite Egypt's offer to pay some 40$ million for them, mostly in order to avoid having settlers return there.
BTW note that not all buildings will be demolished, only the residential buildings (and obviously whatever military facilities exist there). All public buildings are planned to remain intact, ready to be reused by the Palestinians, as does the agricultural infrastructure.