You do not have to choose them because we know that's the same way.
you should know how trading you know when you need to invest because we know the market value is not stable.
You should always be looking at the market so you know when to sell or invest for a lot of money.
But for all the reasons the NEO's debate with Ethereum is due to both similar projects in what they offer. Unlike Bitcoin which is just a digital currency, both NEO and Ethereum serve more than just one goal.
I believe both are good altcoins in the future.