Seekingalpha- Putting Apple's Market Cap in Perspective

This quick little article puts into perspective just how massive Apple’s market cap really is.  Their balance sheet, profits, and cash flows are absolutely amazing, but at some point the law of large numbers comes into play.  Margins tend to be mean reverting.  It’s not impossible that Apple could get to a $1 Trillion market cap but investors need to understand the price that they are paying, and the implications involved in paying that price.

http://seekingalpha.com/instablog/979787-assetinflation/432111-apple-aapl-putting-558-billion-into-perspective