Well, on the plus side, they're a limited edition.
On the minus side, demand for them appears to be practically non-existent, at least among card collectors. I vaguely remember hearing about this deck when it came out. Plus, you opened them - that will reduce the value on a modern custom deck.
You might find more demand from people into collecting Bwin sports jerseys.
You could try an eBay auction, start the minimum at $20 and see what happens, but don't be surprised if you get no takers. Try $10 for the second round if no one bites at $20.