>>24847236Portals and hacking devices in Ingress have a level system, in all likelihood this will translate into pokemon having a chance to escape from the ball and a variety of balls available from regular to master ball.
Your chance of capturing a pokemon dwindles as the pokemon you encounter will have a higher level, and using a better pokeball alleviates the issue. In return, the capture of higher leveled pokemon will reap higher rewards.
And there will be the inevitable social network sharing option to boost your chances of getting better quality items.