The 600i is a supremely expensive ship for its size and role, especially against the larger Carrack and cheaper Constellation. Why is this? What benefits are worth the increased expense?
Cloud Imperium
We are building a universe, and part of that means we can consider aspects that a standard game does not, such as value and desirability. When we look at vehicles in the real world, its apparent that more functionality does not always mean something is more expensive, and vice versa. In the Star Citizen universe, a sleek, luxury ship created by Origin will bring certain connotations with it, in the same way most people would find a sports coupe more desirable than a family sedan, despite the fact it has less seats and cup-holders.
starfarer.space · Q&A: Origin 600i