Condition is king. The terms "HUO", "Restored", "Fully Restored", etc mean a bunch of different things today depending on who you talk to.

A game can be truly HUO in a home environment it's whole life only to be beat up because the owner never changed the balls, scratched the cabinet badly while moving the game, rarely cleaned it and didn't put Cliffy's / mylar down in wear prone areas. On the opposite end you can have a routed game that was taken care of very well and looks great. Should the HUO game be worth more because it was in a home environment it's whole life and the owner still has the original receipt? Heck no.