Canadian "specimen" coins - should we list them?

Following the recent discussion on the existing variants of 2006 Canada 1 cent, I realized that we don't have in our catalog so called "specimen" versions of circulating coin (which is a mirror image on the frosted background). They exist for more or less all circulating coins (and 50 cents, too) from 1996 to at least 2012 and probably till now.
Should we list them, too?

I think so, I have so many coins, and nowhere to list them in Canada.

Cita: "Oklahoman"​I think so, I have so many coins, and nowhere to list them in Canada.

​You mean you have a lot of this "specimen" type of coins or other coins, too? I noted that the section of modern "souvenir" Canadian coins in Numista is far from being complete but it's not surprising - RCM makes them by dozens each year