Hate to get personal or anything, but here is a great reason for RFID from my perspective (I accidentally left a PC Card in the Vaio I returned):
From: xxx [mailto:xxx@austin-sony.com]
Sent: Thursday, April 21, 2005 12:31 PM
Subject: SONY response
Thank you for contacting Sony Style Customer Service. In regard to your question or issue, the response from the research department informed me that: Once the return is scanned they will not be able to locate the same unit in the warehouse.
Thank you for choosing Sony Style! Sony Style Customer Service
www.sonystyle.com