Samsung Galaxy 10.1 Tablet already up on eBay

Yesterday Google gave all the 5,000 attendees at the Google I/O conference the not yet released Galaxy 10.1 Tablet.  And last night like clockwork a bunch of Galaxy 10.1 Tablets showed up on eBay.  I wonder what makes people want to just sell their tablet instead of keeping it?  Yes, it is limited edition because from what I can see its got a different back than the soon to be released tablet.  Oh, and it has 3 months free on the sim.  What are your thoughts on people selling the tablet?