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From the little i know, They all provide similar services with different method of approach and each has its strong hold. Sia is not a big mouth coin. Storj makes a lot of fuzz but from my trusted sources, Sia will be implemented very soon. And it will be left with mainstream adoption to propel exponential growth. They can all survive due to their different approach to the market. But the question, which of them will be adopted mainstream?

Sia it is then! FOMO got the best of me again ;).