Remember, the whole wager program wont be fully implemented until late 2018, so this is a long term investment (kind of like Ether is). there are many things they have to work out. The biggest is getting the word out to potential bettors and the ease of buying wager coins. If those two items are met, this will be a success.
im sure big online betting sites will set up and use wager as their sport betting system, which will help a lot...
Ether had a very strong dev team with a well defined road map. The ICO market is currently flooded and you really need to put forward a strong team and plan to stand out. The people who post here and make comment about how nice the ICO site looks aren't the ones who have the real money to invest nor do I think they appreciate the complexity of what you're trying to deliver.