Ya the 39 is certainly not know for being versatile, but I don't mind. I actually like that its a specific vending machine. You can have any flavor you want as long as it's Coke!
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There is a charm to it in that way. We give kids too many choices anyway...
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Besides, That's what the many slant shelf vendors are for. Flavor choice and bottle size versatility.
Great looking 39 by the way