Excellent domain! The domain is harder to valuate on the .ca extension, but as you mention, the Poker.ca sale shows that there is money to be made in gambling-related .ca domains.
I think you can get at least low $xxxx for the domain. I couldn't find anything on the .ca extension to reference your name with, but here are some .com sales to compare with:
GoldCrownCasino.com- $1000 (Sedo, 2009)
MummysGoldCasino.com- $2400 (SnapNames, 2005)
VipGoldCasino.com $400 (Sedo, 2008)
Again, great name and good luck!