Was it given out at a BlizzCon or something? It might hold some value to a collector if it is rare enough. Most of the regular (non-precious metal) zippos go for around $30 so maybe double that?
Think this somewhat rare (2,500 copies) Diablo 2: Lord of Destruction beta disc might have some value? Don't remember if it was multiplayer only, or if it had a single player component to it.
It's possible that it's worth money. Zippo's are actually highly collectible and there is a market for them. Whether it's actually worth money or not, I don't know. That being said, you're buyer would probably be a zippo collector and not a video game enthusiast so I would start there.
[quote name='exileinoblivion']It's possible that it's worth money. Zippo's are actually highly collectible and there is a market for them. Whether it's actually worth money or not, I don't know. That being said, you're buyer would probably be a zippo collector and not a video game enthusiast so I would start there.[/QUOTE]
This.
The japanese do several zippo lighters for games/anime and they RETAIL for 100+ like this one. However things like this generally hold no value.