What has stopped me from buying some KNO3 (from GD, etc) is news stories of arrests for possesion of this chemical, as well as the thread on here about people getting visits from The Man after buying online. I have no doubt that anyone making a purchase of these chemicals is either routinely kept on a list somewhere, or at least can be found should the authorities wish to - wherever you buy from. I'd much rather buy in real life and so will have to find more garden centers to try. Until then, unfortunately, I will just have to hope that my interest stays alive long enough in the absence of practical opportunities.
I'm sure others feel the same way. Does any amateur (no fireworks business, no licenses..) here not buy online?