Great question ! :) I invested in the Dash for about 3 years ago. Even then they got my confidence that this could be very big. Think that Dash will always be decentralized but worth noting that anyone who owns a master node has the right to vote. I'm one of them :) Do not think they will be a centralized exchange, it would ruin the whole concept. I say as I usually do with all digital currencies, invest no more than you can afford to lose. good luck! :)