Is there a custom knife seller's network. check it out.

[Walking Man]

http://www.bobnealcustomknives.com/1mainframe.shtml

This knife is available on a number of websites.
I'm picking out this particular knife because of the extremely improbable chance that there is more than one of these in existance.
I have also noticed this is true with a large number of knives on his and other websites.
What is up with that????
Is there some kind of service that allows dealers to tap into a sales network or what?