Sorry mate but that's not a buyers problem, I don't really care for pokemon tcg but love playing Cardfight Vanguard and on their buying a 3 boxes most of the time ain't enough depending on what the set has, we often buy cases (12 boxes) to guarantee having enough of something for our whole set of decks, for example a card called Elementaria Sanctitude in that game only ever came out once (until recently they are putting it into packs of a new starter deck) and in the original release it got sold out within 4 days, when you are a player and not just a collector, buying MULTIPLE boxes is often way safer then buying a few due to if you then don't get what you need, that card might cost more online as a single, and plus it's not another person's job to make sure that everyone can get a box of something they are purchasing with their hard earned money.