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https://gcn.zone/index.html still cheap you can get millions for less than 50 bucks and they are starting to build up there exchange
https://ircex.com/ start trading in gcn own exchange now
https://coinmarketcap.com/currencies/gcn-coin/
if you want to get in a crypto before it takes off you should invest a couple of bucks on this hopefully in a few years it can really pay off