He can buy ethereum right now at the market while the price is not increasing too higher. I believe that Ethereum is one of the potential coins which can increase higher in this year or next year. And if he wants to buy ethereum, then I suggest him to buy now before the price starts to rise. When the price increase, we don't know if the price will only increase for a small price or it will get a pump so high, so we need to anticipate that by buying ethereum from now on before it's too late. But as we don't know what will happen to the market in the next hours, we need to divide the order buy into many parts so we can ethereum in various price.