They are just radio-frequency chips. Unless people start changing the bands NFC and RFID use, it really shouldn't need to be replaced. Maybe if the battery some

They are just radio-frequency chips. Unless people start changing the bands NFC and RFID use, it really shouldn't need to be replaced. Maybe if the battery somehow ran out but then I don't have a CompE degree so I can't really speak about the in-depth detail about RFID chips and their power consumption (besides they really don't consume a lot). Maybe to get a chip with more storage (These chips are really tiny storage-wise [last I checked] so not really something you could store a virtual wallet on)