In my opinion, the hidden gem in the alt world is SMAC.
There are only 650,000 coins total and right now the price is hovering around 10,000 sat. Each month the SMAC team does a marketbuy using revenue from social media advertising, and they also have a few other huge things in the works that we will know more about in a week or 2.
Each month, as their revenue increases, the size of the market buy also increases so in a few months there will be 20 or 30 bitcoin buys. Imagine what will happen to the price when that happens, especially with SO few coins! Monday they will be doing their first full market buy for 6 bitcoins!
That's not to mention the other exciting things about to be unveiled in the next week or 2.
https://bitcointalk.org/index.php?topic=952083.0Also in case you are thinking it might be a scam:
http://www.coinssource.com/trust-index/socialmediaadvertisementcoin-smac/