Is Amazon stock a good buy in 2014?

I've done a quick and dirty analysis of Amazon's 10K over the past 3 years and it looks like they've been pulling in an average of 1.5 trillion in gross profit. They seem to be relatively innovative - and always striving to be at the fore-front of technology. They're stock price has reflected this with pretty steady YoY gains. With that said, should I invest in AMZN soon (Amazon.com, Inc. Stock Chart). I'm thinking about getting into it in a major way and I'm looking for some sound advice from fellow investors before doing so. Thanks!!