Sorry... but has anyone actually LISTENED to these fake mics? How do they sound? If they sound fine.... heck... just keep em.
10 years from now... they will be the MOST desireable of 57's. They will be known as the "Fake Ebay 57's". I can just see the advertising now: These were used in getting the guitar sound of Bilbo McRager, the guitarist from the new multiplatinum Rip-Hop/Rock band Fishy, Fishy, Fish that has been declared by all critics the best guitar tone EVER.
Then... you will be able to sell all 5 for $10,000.00 (the equivlient of $1000.00 today... inflation), instead of $100.00.
Just keep em and smile every time you use em....
It's money in the bank man.