Yup, one needs only the starter pack to... well, start. The rest can be bought by patience. Day by day you may get new ones. Thanks for the summons, @bozz, @fredkese. I will make another strategy post tomorrow. My first one was just a couple of days ago, actually. But I would like to hear from somebody new what questions are important to you. After reading the in-game guide - it is the best place to start.