I think it's worth investing - NEO solves a lot of issues that Ethereum does not solve. His usefulness at the moment is higher, which means that over time he will win a good market share. And I would buy it not for one or two months, but for a longer period. Most likely by the end of the year it will show good growth
NEO still needs a lot of time to grow as it is too new and it hasn't show that much of reliability to the public, and it dropped a lot recently so it has to recover in that aspect too.