Once Rift goes free-to-play on June 12th, purchasing credits or becoming a patron will get you loyalty points. Filling your loyalty bar will unlock exclusive rewards, e.g. special costumes or dimension keys. If you refuse to spend any real money on virtual items whatsover, you can aquire REX (a new currency) by trading valuable loot with other players, all while gaining loyalty. Bonus loyalty will be rewarded to those that have previously been subscribed to Rift.