Cactus Cooler - How far east has it been spotted?

I live in Ohio and I have a friend in San Diego who will send me Cactus Cooler every so often, but I'd love to buy a bunch in bulk if I can.

I'm wondering how far away from the Southwest area where CC is commonly available can it be found. I don't mean you saw a case randomly in some obscure store. I'm looking for somewhere that has it as a regularly restocked item.

I have a grand idea about buying a pallet of it or something to make a trip worthwhile from Ohio.

Thanks!