Why bother with the lost leader? The reason people come to you is the dogs, not the soda and chips. Thats an after thought. So why sell those for a loss?(although, I don’t think it would be much of a loss since you can get soda for a quarter a can at Costco and chips can’t be too bad) Why not sell them for a profit?
No lost leader or "value meals" from my hot dog cart. I charge $1 for a can of soda and .50 for a bag of chips(when I sell chips, which is hardly never). My cost for soda is .22/can. My cost for Jay’s Potato chips is .16/1oz bag. At $1.50 for a soda & chips, profit is $1.13. At $1.00, profit is .63. Soda and water are high profit items. Chips aren’t. Besides, people only have two hands to use while eating on the run; one for the dog and the other for the drink. Adding chips makes it a balancing act.