Making billion dollars inventions. But being too stupid to sell them.

Find someone who can handle your business side :D :D

People also never understand that games, applications, even websites are rarely made by one person.

Sure the minecraft alpha was made by one developer, but it was just a cute tech demo, until he hired a team and turned it into a game.

Of course, your next idea could be worth a billion, but to turn the idea-potential into a sellable company you'd most likely have to quit development, become an entrepreneur, hire underpaid teams, realign as lawful evil, backstab your friends, and lose most braincells during hour-long meetings for two years.

For a tiny chance to get filthy rich.

Being employed with a good salary and benefits is usually a better decision, unless you have a product you *really* believe in, and not just for the income.