It's not a fair chance, a fair chance would be if everyone could buy it from one specific rank. Besides, not being able to play much should mean you get to have equipment earlier on? Doesn't Tanki want people to play more? You can stimulate people to play by offering equipment at a higher rank (too high will be discouraging), offering it at a lower rank, won't make these players play more. You know what happens to your account if you don't play much? You receive daily bonusses, but you don't spend them. You can benefit from all kinds of events Tanki organises to receive free crystals (like twitter contests, vk crystals and quizzes). This means you will have a lot of crystals while you're still a low(er) rank. So it's actually easier to get good equipment for your rank if you play less. All my alts are the perfect example of that.