Mal, me too! If you see a 12 year old girl dressed as a Sky Blue Crayola, she's with me!
What is a person to do if they can't make the party? I don't advocate selling unused days or anything but I think this is different? If we couldn't attend I think we'd be out on Harbor finding some grateful ticket-less peeps (for no profit, of course).
It's one thing to sell your unused ticket for face value in a totally honest transaction, but it's a whole different situation with people selling their tickets to the highest bidder on ebay or for several times the face value on Craigslist -- not to mention the risk that those tickets might not even be valid.
What a person is to do if they can't make the party is
give the tickets away, free of charge. First, ask Disney and see if there is any way they will refund the money - usually they will not, but every now and then a kindly Cast Member may show some mercy in certain cases. If that doesn't work, give the ticket(s) away.
Technically, any Disney park tickets are not supposed to be for resale, and no one is supposed to be selling tickets park/party unless they are authorized by Disney to do so (like certain travel agents and things like that). Once you get into the area of 'how can I get my money back on this ticket that I bought and can't use' and try to sell it, it becomes a legal issue to Disney.
Do people still encounter situations in which they can't go at the last minute and have to get rid of a ticket? Of course! Do people still sell tickets that they can't use? Of course! And I'm sure that many of these transactions are conducted in ways other than on eBay or Craig's List, and they probably go off without a hitch. In other words, it happens. It's just not
supposed to happen.
But people can't sell tickets here on the DIS (there are no sales of any kind on the DIS), nor can they post, "Hey, I'm selling my tickets - PM me if you're interested" or something like that and disappear. We will delete the thread if we see it. Also, people are not supposed to say, "Hey, I need tickets for X night - I'll buy them; please contact me."