1. People like techy type stuff (See: iANYTHING)
2. If you can use tech to overly complicate normal everyday functions, people will love it.
Therefore, I see an all inclusive app/plastic RFID Card combo coming that covers everything from ticket media, resort purchases, and dining ressies, to opening the room door.
They could also put the chips in a variety of items that could be linked to your account. Things like rubber locket like things to wear around your neck to belt clip retractable fobs similar to what I carry my work ID on.