Well, all of them can be collected, but there are two limited editions that are available. The regular
limited edition is bound in black leather and costs 170 USD. 1000 were printed, of which 341 are still for sale on Ballistic's website. The
special collector’s folio edition is bound in mock worn leather and comes in a display case, and costs 290 USD. 100 were printed, of which 58 are still for sale on Ballistic's website.
Both come with a hand-signed certificate of authenticity.