@Beckiebird and the people who thumbed down my prev comment. Bananas indeed do not grow on trees. I thought everybody would have known this fact since young. (By the way, an excerpt from wiki mentioned, "The banana plant is the largest herbaceous flowering plant. The plants are normally tall and fairly sturdy and are often mistaken for trees." Ok, so there are indeed many people who mistook them for trees.)
Just an observation: The pool seems to be the most profitable - low monthly expenses but high income. Food establishments, on the other hand, do not seem to generate much stable income. Anyway, this is a pretty nice game which made my day! :)