I had to laugh when I read that. When I lived in CT I could grow the same things as you - but my rosemary died. Now here in Arizona I'm struggling to keep my basil and oregano alive but the rosemary is taking over! I'm not doing anything to it either, its on a drip line once a day. I guess it likes temperatures over 100 with very little water!I think a lot of it has to do with availability and cost and common sense. I have a plethora of lemon balm, sage and thyme in my garden, so could feasibly use fresh, but I can't grow rosemary to save my life or know anyone that can.