altcoin investment is a good investment if you can choose some good legit project/coin. its time to collect some altcoin with cheap rate(although altcoin started to pump).but still I believe its good time to buy altcoin and hold them for a great pump. End of the year would be great that I think and a lot of people also think so.
That's right now whatever you buy will make a big profit if there is a bullrun, provided you can determine a good coin/project.
But I prefer to invest in 3 coins for now, Bitcoin, Ethereum, and Ripple. The reason is simple because the price of Bitcoin and Ethereum is falling and I think just waiting for the right price to buy it and Ripple has great potential to become a star this year by replacing Ethereum in second place in Coinmarketcap and still have the possibility that Ripple prices will continue to rise until the end in 2018.