The beauty is, they dont have to choose one or the other, because they can utilize both. As a dapp developer I can get more exposure for my project by launching on both services. With that being said, there are a couple advantages to using Expanse. The first one being, cost. A developer can launch their dapps on EXP for a fraction of the cost and all the users of the dapp can do so cheaper. Another reason being finality. We have already publicly vowed to never compromise the integrity of the blockchain with bailouts. Finally, community, I know community is something that everyone says, however, join our slack and see. We have nearly 1000 members who are all excited about Expanse.