The Golan is a tiny bit of land in comparison to the size of Syria overall and without great value to Syria. It only ended up attached to Syria as the result of an overly thick pencil line on a colonial power's map. It has never been a major population or industrial center, and even now, is still developing agriculturally. Of course,in ancient times, it was a Jewish area as archeology demonstrates. The two main reasons that Syria NEEDS the Golan, is for restoration of that precious "Arab pride" (always a cultural impediment to meaningful negotiations)and to launch sneak attacks on Israel. It should never be given back.
Western-backed Syrian rebels say kill foreign Islamic State (Reuters)
from the article: Netanyahu: Syria dropping Golan condition for talks