Should I pawn off the various goodies that have come via my Xbox Live beta participation, or should I keep them? Included are a beta T-shirt that's going for about $25 or so on ePay and an orange memory card (supposedly only went out to the earliest beta testers) that's going upwards of $50.

From a personal standpoint I think they'd be cool to keep, but having the extra money for Christmas couldn't hurt. I generally don't wear video game shirts (Rockstar's sent several with review copies and I never touch them), and I already have another Xbox memory card. Do you think these types of things will appreciate in value longterm, or do you think they've peaked already? Fellow betaers, did you sell yours or are you holding on to them?