I think, the mining in 2018 is not perspective than other alternative sources of crypto. If I were you I'd like to invest in good coin or get tokens from bounty.
Lol. It's normal for today's altcoins. So less of them will be good tokens in the market. It is the most problem of bounty, after scams and other like that.
I have many tokens which don't trades on market. You just should to wait for it and that's all. You should to search perspective ICO and get tokens from there.
Bitcoin is the top coin for so long time. It'll finish so soon. And many people think so. ETH the second top coin on market, and will be new king after BTC.