Not an investment advice, but NEX will only be a dollar at ICO time. I'll be keeping all of mine regardless of the insane price it will pump to when it lands. Once it calms down and the traders finish making their gains, I'll buy even more. That's my core investment journey over
NEO is only after what the altcoin Ethereum did. I think that it's fair to invest in both if you want to be a little more on the safe side.