DC / Marvel Tags Price Check?

Hi all. I'm new here, I don't know if I've broken any rules yet (I hope not) but I just wanted to ask you people how much you would be willing to pay for some OG Marvel or DC character gamertags (separately of course). If you read your comics, you'll know who these characters are, if not, do some research! I am not selling these tags currently (they are all silver BUT one which has gold soon to run out by the way) but I may do so in the near future once I know how much they're worth.

So here they are:

Carol Ferris
Collective Man
DC Universes
DCU or Marvel
Doctor Sivana
Gilda Dent
Hawkgirl Prime
Hawkgirl UK
Karu Sil
LEGO Groot
LEGO Nick Fury
LEGO Gamora
LEGO Ant Man
Madame Menace
Mekanique
Roland Daggett
Sunset Bain
Veronica Cale (currently has gold soon to run out).

Thanks! I have more, but I won't post them just yet. Let me know what you think.