I'm hooked up to XBL so for having to download demos from the store kiosk is out of the question. Plus I have a 120 gb hard drive so there's probably no chance that I'm going to need any extra space and it's highly unlikely I'll need it to bring my profile to someone elses Xbox. Is there any need for it? I have it brand new and I don't want to open it because I could probably get a bit more if I decide to sell it.