I've bought XSPEC when it was around a few cents selling for a small profit but actually I don't regret right now just because even if i like anonymous coin i don't like investing in them. 2018 will be the year of tax and i'm sure most of the people here would probably use it for moving their profits. Right now Spectrecoin has the highest technology and i'm sure it will grow a lot in the near future. Just wait 6 month for the first real important release