I'm thinking this might be one of the better posts in this thread. My guess is a large % of us in the U.S. won't see this in their state for a good while. This whole thing will drown in red tape in most states that try it.
The best scenario is your state introduces it and this fall you see Patriots -7.5 -120/Dolphins +7.5 -120. Good luck with that. The sharper bettors I know on this board know that shopping for the best line and juice is the edge that puts most of the winners in that circle.