Anything less than 10x you might as well stake the tokens and chase the yields. If it matches the daily volumes of an exchange like BitMart (#21 in volume) your investment will breakeven within a year. Binance volumes would be a month. Hard to believe such a hyped exchange won't make it into the top 20 in volume. Either way I plan to stake my NEX. The potential returns are insane when you compare to non-crypto yields. NEX is a Fiat gateway that is focusing on being user friendly to attract the masses and compliant with regulations, hence the ICO delay. Huge potential in my humble opinion.