They're a business, not a charity.
Just cause you can't come the next day with the same cup and scam the system doesn't mean it sucks. I'm pretty sure they'll have a refill sticker with a new RFID chip eventually for people that have already purchased the bottle. Also, I think it's actually really well priced for the variety of product you're getting. Especially if you're a family and plan on sharing for the day.