Quoted from Aurich:It's a ridiculously stupid term anyways, games are either in really good shape or they're not. Whether they sat unplayed on location at a VA hall (true story for a pin I was trying to buy) or in someone's home arcade that got constant play at parties by drunk friends it's what they look like that counts.
Just retire it already, condition is king.
As I'm mentioned many times, this is a typical comment of someone who has never seen a true HUO wpc. While I agree it's the condition that counts, I have yet to see an in person or anywhere on the net a true HUO WPC that looks like shit.
Receipt or not, a true HUO WPC can be determined right way by spectacular condition. One might say the best restorers could have done this, but really, they're not trying to fool any one and would brand it as their work, and more often then not do so much additional modding or chroming, that would be indicative as well.