A simple warm meal tastes best when we are exhausted and hungry from work. A few minutes just sitting on the couch relaxing, doing nothing feels the greatest after an intense exercising session. A piece of chocolate tastes better when we have been waiting for it. The more we really want something, work for it and are tested on our patience the more we enjoy finally having it.
That which comes easily is easily taken for granted.
So go for the more difficult goals instead of the ones that are easy. Even though it takes more guts, work and persistence, the end result should be more than worth it. Additionally it prevents us from taking our life for granted, which is the biggest mistake we can make. That which is taken for granted is not appreciated and easily wasted.