Archival Mist is $60 CDN at Michaels, but I found it for $25 online (Scrapbooker's Paradise, ships to both Canada and the US, and has its prices online in both currencies
No not the owner, just a happy customer from before they switched their shipping contract to CanPar).
I don't know if the cans of AM are the same size, but I do know I am happy with the size of can I have now.