eth and xmr is good if you prefer short term profits. btc mining rate can go up, but prices going up too.
so, imagine when mining equipment are sold out and only a few people own hashing contracts with lifetime payouts. and more people keep buying and hearing about bitcoins.
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But I doubt that only bitcoin contact does not have end date, and the mining profit may be to small so that genesis mining set the contract with no deadline ......
maybe yes or maybe no.
always do your research before investing.
many altcoins are speculations, hyped up, or scams.
And there are many ICO available, it just a gambling ：）
yes, it is so easy these days for anymore to create a fake website, white paper,and even fake developers profiles. icos can be made by scammers, by crypto newbies, and or even by people who think they gonna get rich by just having an ico.