The races are catering to people who have no idea how to purchase a dog coin so currently it doesn't help at all.
However, if this crypto thing takes off and "everyone" is doing it, they'll at least have heard of this one and not others (possibly not even bit coin) there is many value in that long term. They'll plunk down in what they know first.
The whole thing about people not knowing what Dogecoin is, I completely agree. Racing is a pretty small niche, though. We're basically gambling in the hopes that the small niche will jump in Dogecoin, and I just don't see that happening.