The best prices I've found have been from
http://bestdirect.ca/ . Kingston 32 Gb microSD Card for $55. I've purchased lots of stuff from them and have been quite happy. No problems at all in about 15 shipments.
They do charge $10 shipping and usually use courier companies although they have a free shipping if more than $80 right now. They will sometimes ship things from both warehouses even though the store states they have lots of stock in the Vancouver store. (I'm in Alberta.)
I like their wish list so I can add things when I think about them and later when I have to get something I can go through my wish list as well.
They generally tag description of items quite well. So searching on Kingston 32gb works quite well.
Note that I don't work for them or own stock or whatever. I'm just a happy customer.