And it's not only that. You get money for referrals (you and the person you referred! if you don't have anyone I can give you my code and both you and I will get 5 buckaroos

). They constantly run freebie promos, gift cards, more cash... I've easily gotten over 50 bucks in cash and gift cards from promotions alone, not to mention the initial promos where they offered 100-dollar credit on their store and stuff like that.
But rewards and perks aside, seriously, once you get used to paying with your phone, you won't want to go back to credit cards. My only gripe is that not all establishments have the payment terminal accessible to you; restaurants without a mobile terminal, shops like Starbucks that have the card reader embedded on the cashier's computer AND on the cashier's side, so it's really hard to reach out and use your phone there, unless you're cool with handing your phone to them and walking them through the tap-and-pay process, although it's fun to see their faces when it works and they had tried to tell you a million times that it wouldn't :P