Price check - 2006 brownlow card set

[Jack09]

Hi guys, discovered these gems the other day.
Just interested to see if they're worth anything.
Footy cards have them for $500 down to $400, has anyone seen them actually sell?
http://www.footycards.com.au/2006-afl-select-toyota-champions-of-the-brownlow-medal-set.html

 

[juddcollector]

I have a Judd one I bought a few years back, I think sold individually the better cards are worth about $15-$20 each but some are putting them up for ridiculous prices