There are only 700 of these coins, making it [one of] the rarer casascius 1BTC coins. I am quite happy holding them for as long as it takes to sell them at my price-point, which is competitive with others on these forums and perhaps the cheapest option for Canada
To be completely fair, Mike also mentioned that all additional silver coins will be produced on this silver and gold style, which will make the coin increasingly less rare as production continues.
There will only be 700 gold B coins compare to 1300 all silver coins. No more will ever be created by Mike. Heck, he doesn't even make ANY coins at all at the moment !