I sold an Earthshaker at a show earlier this year that literally looked like it had survived an earthquake for $1400. It played 100% and had some LEDs but had major playfield wear and the cab was trashed. WW is more popular than Earthshaker and is definitely in higher demand.
This game is $2K+ all day long. The OP could do himself a favor and hit it with a little magic eraser, some new rings, a blue sharpie and spinner decals. It does say (OBO) so put down your pitchforks.