Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
Earth worm farmer. It would be a slow process rounding them up on horseback, but probably very fun.
Brothel.
That's easy... Medical Marijuana dispensary!
Lol, nice one Homer .... Honestly you seriously had me thinking last night when you said pizza shop. Found a Pizza business in a high traffic area (supposedly 9,000 cars go by a day) It was a very successful pizza place for the last 12 years... and all they want is $595 a month !! it's in a rich neighborhood around a lot of businesses... but again it's unfortunately about an hour from my house....