If buying within Canada, don’t forget to add HST, which adds another 13% or more to the price.
Also, I’m a little more sure that illumn is selling genuine cells, than a local vape shop. That’s primarily because I can’t find dozens of positive reviews about a local vape shop, whereas illumn gets a lot of Internet business. The vape shops are hopefully selling genuine cells (certainly betters odds than off Amazon/e-bay/Chinese sellers). But, maybe they just bought them off Amazon?
But, yeah, if I was only buying a couple of cells, illumn doesn’t make much sense. In that case, maybe I’d risk a new source.