What's worth doing is worth doing for money.

For those of you who aren't up to speed with the big Wall Street bulls and bears, hedge-funds and Gordon Gecko types, we thought we'd take the time to let you know about an interesting tidbit from the world of high-finance.

GameStop, the video game outlet with almost 5,000 retail stores, will soon be added to the S&P 500 index. What does that mean? Basically, the S&P 500 is a list of 500 companies believed to be the largest, strongest, and most representative of the United States (mostly) economy.

So why do you care? You probably don't, but it is something to think about. The companies on the S&P 500 are largely symbolic of what the country is doing and where it is going. For instance, 30 years ago there were almost no technology companies in the index. Now, companies like Microsoft, Apple and Oracle are scattered throughout.

With the addition of GameStop to the index, we get another indication of just how strong the gaming industry is and how it continues to grow.