According to the current market situation, when the market tends to increase, with 500 euros, equivalent to about $650 you can invest in NEO because the current price of NEO is $77 and ETH is $ 659 by Coinmarketcap. So with $650, you will buy 8.45 NEO, but with ETH you can only buy 0.9 ETH. Therefore, if you want to make a high profit in the future, invest in NEO.