According to Konami, the original idea was Crow to be a dark signer.

But, at the end they decided to make him a signer. 

The reason this changed was 

the fact that his Black wing cards were

 sold pretty well. 

He was supposed to be the last dark signer who 

was at the end replaced with Rex Godwin 

I really wanted to see Dark signer Crow. 

He looks so sexy

Do you think Konami brought the right decision 

to make Crow signer instead of dark signer?