How do you make money from CryptoKitties?

How exactly does one generate income from CryptoKitties? Are there specific strategies or avenues for profit-making within this digital collectible platform? Are the profits derived primarily from buying and selling rare digital cats, or are there other methods, such as breeding and auctioning, that contribute significantly to one's earnings? Is it possible to make a sustainable living solely by engaging in CryptoKitties transactions, or is it more of a hobby-based side income? Additionally, are there any potential risks or challenges that one should be aware of when pursuing profit opportunities within the CryptoKitties ecosystem?