One of the issues with RFID is the cost of the chips. I worked for a business that looked at using RFID tags for tracking inventory, the average cost for a passive tag was around $1.20 CAD ~ $1 USD. It didn't make a lot of sense to use them for $25-35 products so they went with barcodes instead, but for the application that VeChain is trying to break into - luxury goods and products - it makes fiscal sense