I live in the Netherlands. In the 80's we use to have giant stores owned by couples living above or behind it. They owned 100% of the building, they owned everything inside it.
One particularly memorable instance to me was an old couple, the store had a ceiling two floors high with an 8 shaped cast iron balustrade wrapped around it. I want to say they sold puzzles, postcards and mostly wooden toys but technically that was what they had in stock, they didn't sell much of anything. If they sold 3 postcards and 2 puzzles per day it was enough to buy food. Food was really cheap.
The store was empty most of the day, if customers arrived they switched some of the lights on from behind the counter. If a wave of tourists arrived the place lit up brightly like a xmas tree. They sold the single key chain and one post card and went back to their living room on the other side of the door behind the counter. It was a magical place with many items aged into antiques on the shelve.
The old couple eventually died and the place was sold for many millions, stripped down and modernized for millions followed by a parade of over priced tourist traps that went bankrupt one by one.
Everyone working there has to pay for housing too! The rare place to live that becomes available would also be far away enough that you need a car, a long drive 2x per day and places to park it. Then you need to work hard, there need to be at least two shifts, you need to sell lots of things with very large margins.
The difference is much larger than people imagine. A bad day use to be one post card for some potatoes. Today's postcard is 1/100 the production cost, sold for 6 times more but the revenue isn't enough for one employee to park their car.
For just 6 employees at 1500 pp plus say 6000 for the store you end up with 15 000 just for housing everyone (not counting the 80 year olds such store has no use for)