The new price is around US$1,350, but I'm not sure who would want to buy it nowadays. If I'm not mistaken, this is the 16X lens that came with the XL1, so it's quite an old model. The XL2 has a 20X lens so it's unlikely anyone would want to switch.
Now if it was the 16x Manual Servo Zoom Lens XL 5.4-86.4mm f/1.6, the price is similar but you would have more chance of selling because it is manual focus, and has fixed maximum aperture of f1.6 even at full telephoto, whereas the other lens closes to f2.6 when you zoom in.