"Where do you buy Blu products?"
Did you mean "WHY do you buy Blu products?"
If you cant find them at the gas station or convenience stores, you will have to go online to buy them. And if you have to go there, then you might as well look into an Ego starter kit and juice. I started with Blu as well, but like so many here, we quickly moved on to the refillable type Ego with Clearomizer or a VV/VW mod with battery.