What's the value of?...

[MortalMonday]

Anyone care to chime in on the value of this little puppy?:






It's a mini billboard that was used as official promo material prior to the release of the first LBP game. I just got it and really I'm not sure what it's worth. I know it's one of those things that's probably worth whatever someone is willing to pay; but perhaps your opinions can help me get at least some vague idea of value. Thanks.