When was the last time you sat down in your living room to play a video game for hours on end without feeling guilty?

As someone who grew up with Nintendo, Sega and Sony, I find it increasingly difficult to find the time to devote the 15 hours a week (or more!) to a game that it deserves.

I love video games. Always have. But after seeing stats on mobile gaming, I’m afraid devoting hours to a console may become a thing of the past.

In a recent study performed by The Entertainment Software Association [pdf link] 150 million people are playing video games across the country. But only a fraction of this number consider themselves “frequent gamers” and at that rate, play an average of six hours a week.

So if only a fraction of the 150 million people are playing consoles for a few hours a week, what are the rest of them playing?

Mobile games.

Digital Buzz Blog recently came out with some pretty incredible stats on the state of the industry:

The mobile gaming industry is predicted to reach $54 billion by 2015

84% of tablet owners play games

70 – 80% of all mobile downloads are games

Developers made $87 million in ad revenue in 2010 and will grow 10-fold by 2015

Think about it: what are you doing while you’re in line at the bank? What about waiting on your girlfriend to finish getting ready? Or even killing some time on a long plane ride?

These are all perfect opportunities to whip out your phone and kill some time with a quick game.

Maybe you were one of the millions who downloaded Flappy Bird or see why NetEnt is so popular by trying your hand at winning some cash with casino games.  But if you weren’t, statistics show you probably will at some point.

Hell, even gaming giant Nintendo FINALLY revealed they would be moving some of their games to mobile. If a billion dollar console behemoth in Nintendo can see the value in mobile, it’s only a matter of time before the other companies follow suit.

The point is, as more and more of the population becomes increasingly busy and relies on smart phones, mobile game usage will continue to explode in popularity.