Even though I don't understand money, I realized something somewhat money-related:  Some markets and products are industry-driven, while others are customer-driven. 

Bubble gum probably wasn't invented for the purpose of meeting a need.  No one said, "Ya know what I want?  Something to chew on for a while without dissolving in my mouth."  Same with TV (whoa, that's a jump).  Nobody said, "Ya know what I need?  Something to watch in order to waste my time.  I just have too much of it."  I would postulate that many things in our lives exist because some marketing person thought it would make them some money.  Diamond rings, car radios, personal computers, shampoo, "collectibles", cereal, and theme parks are a few more examples of industry-driven products/services.  In other words, the market for these products was created by the people who made/sold them; they provided no viable solution to a problem or need. 

But then there are other huge markets that developed over time out of a definite need for a solution to a problem or inconvenience.  Athletes in all sports need something to give them better footing.  Enter the world of athletic shoes:  Tennis shoes, running shoes, soccer cleats, football cleats (different from soccer cleats), basketball sneakers, etc.  These products were all developed to meet the needs of athletes.  Sure, these products may have been embellished a bit (who the heck needs to pump extra air into their shoes?), but their general purpose was brought about by a specific set of needs.  The personal automobile came about in order to transport people from place to place.  Eventually, people wanted a smoother ride.  Enter the modern suspension system.  Certain people wanted to be more comfortable in their cars in Florida.  Enter air conditioning.  Somebody wanted to watch the sky as they drove.  Enter the sunroof.  All these things came about because somebody needed or wanted it.  A company didn't come up with the idea and try to convince us that we all needed it (except maybe sunroofs). 

It's interesting to see where certain things come from and why we sometimes desire them. #business