Is white label profitable?

Could you elaborate on the profitability of white label cryptocurrency exchanges? Are there specific factors that contribute to their success in the market? Are there any potential challenges or risks associated with operating a white label exchange? How do they compare to traditional exchanges in terms of revenue streams and scalability? Additionally, how do the costs of setting up and maintaining a white label exchange compare to other business models in the cryptocurrency space? Understanding these aspects would help potential investors and entrepreneurs make informed decisions about whether a white label exchange is a viable and profitable business option.