>>It seems to me, if Israel were trying to acquire Arab land, they would never have given up the Golan Heights. They not only gave up the land, but they gave their enemy the high ground.
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>Golan Heights is still disputed. Not fully given up for the exact reason you mentioned: high ground.
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>What was given back was Gaza (unilaterally) and the Sinai in exchange for peace with Egypt. Southern Lebanon was given back in Jan 2005 and retaken in a war last month as we all know.

Southern Lebanon was "retaken"? Are you sure about that? If this was another Israeli victory the international media on site were massively confused. None of them even noticed territory changing hands.