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I think it's a good investment long-term, we'll see it go up. If you're looking for higher returns though, I would buy either Litecoin, Dash, or even Etherium. They all have the best chance for good upside, especially long-term.

so do you think that eventually there will only be one type of cryptocurrency, that will rule supreme, eliminating all other cryptocurrencies?

I doubt it since each cryptocurrency has their own specific role and do different things. Companies are always trying to come out with the next best thing so there will always be competition and diversity. Thanks for commenting!