Well to be honest, to say that you're going to give it away for free and then retract the offer is a bit of a moral obligation issue.
Having said that, whoever private messaged/emailed you first should be the one who gets it.
If you wanted to find out if it had value or not why didn't you stick it on ebay with no reserve?
Also if anyone has got any donations for
www.retrogameplay.com eg Commodore 64 books, magazines, Amiga stuff please contact admin@retrogameplay.com any donations would be greatly appreciated and would be all to happy to put on my web site that you have in fact donated to it.
Cheers
Retrogamer