Where is the best buy on Northwestern 60, that vends 1" capsules, vends at .50?

I started an Honor Box Vending business this year. I have been adding accounts slowly and have 26 boxes out now. I have dropped the bad accounts and those 26 are good accounts. I have a few wanting me to add Soda Vending. I started the Honor Boxes because I didn't want to pay for, maintain, move, etc. the machines. I find the honor system works most of the time, and when it doesn't I just pull the box and locate it someplace else. I know sodas are more profitable, but I still don't want to get into machines. What are the thoughts on this forum about a simple cooler with sodas on the Honor System? I would only place them in the good accounts that have already proven to be a good Honor Box Account. I did a search on the web for this type of Soda Vending and came up with nothing. Thanks' Terry