Well, remember that the dodocase you mention sells for $25 with RFID, not $20. So you don't have to be off by a whole heck of a lot on each individual component

Well, remember that the dodocase you mention sells for $25 with RFID, not $20. So you don't have to be off by a whole heck of a lot on each individual component to end up with them selling the thing at cost, or maybe even making a little on each unit they sell.