In the language of Baseball, a “Short Porch” refers to an outfield so small that hitting one out of the park is similar to hitting a ball off the porch. An accomplishment that is not very rewarding in itself. And when it’s so easy to clear a short porch, requiring little or no effort, it’s called “cheap”. No one appreciates anything considered cheap.
The same applies to real life. It is much more rewarding to play on the big porches.