Using the Google Trend service, I looked at the frequency of the searches for the keywords "RFID" and "Barcode" and the results were quite interesting. As you may see in the diagram at the left both RFID and Barcode, at least from popularity in terms of search, continue to coexist at the same level. Now, I have a question for you: As you can see, the pick at the diagram for the RFID happened at point B which is around march 2006 and then it started decreasing. What happened around point B? (Don't look at Google Trend, ok?)