You left out the part about working long hours 365 days a year too as many small marina owners do.
Now that also omits one positive that people like Wanda would cite and that is all the people, generally nice people, you meet and interact with over the years. I know one man who in the process of selling his marina "negotiated" a hang around agreement. He was selling to a good friend and seriously wanted to know if it was ok if he just came over and hung around. The buyer said, "you might get put to work, but you're always welcome." The seller said, "Well, I'm not pumping gas, but if someone needs some candy and a soft drink I'll sell it to them." The owner said that he loved being there, he just didn't want to have to be there anymore and he and his wife would travel some.