[madelinecameron]

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)

[pavel_lishin]

I believe that RFID are not battery powered - the signal that pings them is what powers them.

[madelinecameron]

Ah okay, yeah. I knew they were active and passive RFID tags but I think the last time I played with some was almost a decade ago, haha.