Right now bitgur is showing a price of around $3.50 per FUTR on Cryptopia: https://bitgur.com/coin/FUTX. Factoring out the 15.3% fee and that is effectively $4.03 per FUTX * 114 FUTX (for 40% left of this level) which is $460 per ETH. For every $460 you spend at Cryptopia at the current market price you will receive back $850-ish of ETH assuming ETH doesn't go up and no more mining goes ahead. If there is more mining of the smart contract and we hit level 2 then you are paying in effect $400 or so per ETH, which you get back at the full ETH amount (we are 40% away from that point).

Main point is, buy it off Cryptopia for now as you are paying half price for ETH assuming everything that can go wrong with FUTX foes go wrong and assuming ETH does nada all year . Anything better than that and your returns multiply exponentially per event.