I sold a little of my BTC to get some NXT last week, mainly because NXT has loads more possibilities than BTC. Not only was it built in JavaScript (which makes it possible for many programmers to start working with it), it is so much more than ‘just’ a cryptocurrency.
(I write an article about NXT here: https://steemit.com/crypto/@mike314-0005/nxt-the-second-generation-crypto-that-will-be-the-real-competitor-for-bitcoin )