theory11 — Magic Tricks & the World's Finest Playing Cards

Smoke and Mirrors on Ebay

How about a dollar, I'd buy those.

Anyway, just check what others have sold for. I think they usually sell for around $20.
 
Put them up for however much you want to sell them for. They're not being printed anymore (hence "first edition")...so the value is really whatever someone wants to sell them for/pay for them. :)