DraftKings CEO Jason Robins said that a possible merger between his company and FanDuel is a “very interesting idea” that could add value for shareholders and provide customers with a better service at a better cost. But he declined to rate the chances of it happening after recent reports of merger discussions between the two daily fantasy sports rivals. “I don’t really have much more insight into how likely or not likely that would be,” Robins told USA TODAY Sports Saturday. “I certainly haven’t changed my view on how interesting it is.” United as one or not, Robins still said he sees…