I guess it all depends on your overhead!!! Right Johnny?
For instance, I have a 2000 sq. ft. fully equipped store that I rented for $100 a month, the Garbage, Utilities, Phone Service, and Insurance cost me all total about $800 a month. It currently does, $5000 a week, My Food Cost is 30%, I spend $1000 a month on Advertising, and I spend $850 a week on labor. Do the Math Johnny!!!
Yeah! I make about $2200 a week profit, and I only visit that store 2 days a week for a total of 2 hours.
Low overhead is the key in my experience. I learned the hardway, I use to own a nightclub that had $36,000 in monthly overhead. Needless to say, I left with narely the shirt on my back. I went from HERO to ZERO in that enterprise.
I used to target large cities, with large populations, but I have learned that the small towns littered across the U.S. are a gold mines. I have found several low rent situations, and even a couple of no rent situations adjoined to Bars. I make just as much now in a $5k a week store, as I used to make 12 years ago working for DPI, in a $20K a week store.
If I can find a bar with no foodservice, I can usually convince the Bar Owner into leasing me the kitchen for less than $300/mo. The Kitchens are generally equipped with 90% of the equipment you need.
If I only $300 a night, alone, the first two nights I pay off the overhead, the next two nights I pay food cost, and the last three night each week I earn my pay check.