Off-topic- always going for the best

I always wondered why people live for the best they can. No one is ever satisfied with what they have, although it is for various reasons. People who are successful in their businesses attempt to expand their business until they can’t handle it any more. Sports teams always look to find the best combination of players and coaches so they can win the championship. I always look for the best deal I can get whenever I decide to buy something. What is our obessions with the best? Do we just like the idea of being the best? Or do we try to be the best so we can get recognition for achieving the best?