Apple worth more than $300 billion, your first iPod barely pushing $20 on eBay

Remember when Apple edged past Microsoft in the market capitalization game, way back in 2010? We were young and innocent, and AAPL was only trading at $249.99 a share. Fast forward seven months and Apple has left Microsoft in the dust, with a share price at $329.75 that puts the company's market capitalization at more than $300 billion -- making it one of only two companies worth that much in the stock market's eyes. Naturally, market cap isn't the only game afoot -- Exxon Mobil still rules the top spot, and we can't think of the last time oil did any hard work revolutionizing device UI -- but it's a pretty nice mark for a little Cupertino firm that would've been called the tech industry underdog just a decade ago.