muffler and brake shop

There was a guy who opened a muffler shop in a great location near me. He told me the lease was 3K per month. His one man show failed. Meanwhile there's another muffler shop about 8 miles away in a much older building, too close to the widened road. It is run by mexicans. Work in both bays every time I've drove by there.
Same applies to the tire business. Drive by a nice tire store and see 4 of 5 bays empty. On the next corner there's a guy with a tent and a floor jack installing used tires who is always busy.
So make 100 dollars each off 4 customers or 20 each off 20 customres, the big difference is how you feel at the end of the day. That's my take on it anyway. Good luck