they sell it in like, 16s and huge boxes where I live, in the grocery store simply in the soda aisle, and when I first found it there as a homestuck fan, I really thought it would have been harder to find then when/how I did.
yeah. I was just walking down the soda aisle, getting coke for my dad or whoever asked me to get it, I was with my sister, and we passde it and were like "TAB!!!!" funny. I never find homestuck references when looking for them but always find them when Im not