Doesn't sound like a terrible deal for the Char-Griller. My neighbor bought one to try to keep up with me (
) and he loves the combo. He doesn't have the side box but loves using both Gas and Charcoal to cook for his family. For $125 it wouldn't be a bad purchase, given that you have enough space for it. As for using it as a stick burner, I wouldn't. I would stick to charcoal since that is what its designed for. You could try burning majority charcoal with a split of wood on top but I wouldn't do straight wood.
18.5" OTS, 22.5" OTG, CB Silver(Rip), Vintage Coleman Bullet, Pit Barrel, UDS