Quoted from MrBally:$150.00 assuming complete (all boards and game Roms in the machine) but unseen.
I'd have to say this is really off base, I would venture over a hundred people - including myself - would pay at least twice this for a complete poor condition Xenon.
I agree:
Quoted from too-many-pins:$350 to $400 is likely the right price point considering not working and playfield wear.