Well, I bought some recently and regret it, the GAS price is pretty terrible now, as all the current market prices.
NEO price to BTC is just going lower and lower. However, in the long-term it may be a good purchase, diversification is always a good idea.
NEO is a high potential project do not regret from your investment in this project because of the current market. Everything will be better in the near future and then this investment will bring a high profit for you. It is a coin which have a very high tendency to rise in the coming future.