Re the OP I do love a good rare roast beef sandwich on a toasted “everything” bagel with sprouts, tomatos, red onion, cheese, lettuce, and a light dab of mayo.
I’ve never run a deli but as a commercial real estate broker I have sold and leased several delis and other small restaurants. or the real estate they resided in, after they failed, and the owners partnership, marriage or relationship has broken up, and they’ve declared bankruptcy.
Running a small food service business seems neat, but it’s a brutal, brutal way to make a living and unfortunately most of the time trying to be special, and high quality, and artisanal etc. only hastens their demise. Sometimes being too successful can also swamp a business as easily as not having enough customers.
There are success stories but they are far fewer than the failures. The “small restaurant” successes generally have a few things in common.
They don’t “trust” anyone and keep an eagle eye on inventory, receipts, and the register. They know people will steal if given even the smallest window of opportunity.
They are well aware upfront of what the real world “make or break” profitably targets are for the store and track income and expenses very closely.
They have negotiated a relatively cheap rent and have an “out” clause they can exercise on relatively short notice if the business is not making it.
They work brutal hours and have accustomed themselves physically and psychologically to a meat grinder life. This is a difficult transition for many people.
They beat the crap out of their suppliers for deals and are completely aware of what competitors are paying. Their suppliers are not their buddies or their friends.
They get the food out as quickly as possible. Hungry people are impatient and at lunchtime are on a limited time window. People on a lunch break may wait 15 minutes for a sandwich, but they will not do it more than once or twice.
They don’t take vacations for the first 5 years of running the store
They don’t get overly precious with expectations, They keep things simple and efficient and have limited menus
They are generous with portions of high profit stuff (ie fries chips etc)
They keep staffing at minimal levels and are super selective about whom they hire even for low level positions.
They use coupons when starting up (net or printed) to build traffic. Door hangers in surrounding neighborhoods are huge traffic builders
They are fanatical about clean bathrooms
They always check IDs when selling beer or wine
They have an emergency slush fund set up to be able to replace equipment to make major repairs if necessary. They do a lot of equipment maintenance themselves and are almost Jr league techs with some pieces of equipment
They know that a lot of people are out to fuck them out of as much money as possible and plan accordingly
They don’t “trust” anyone and keep an eagle eye on inventory, receipts, and the register (yes this is being repeated for emphasis)
Unfortunately the above is not always a good match for nice, trusting people with a culinary vision.