Maybe it's better that gambling is more 'hush hush' and a little taboo in America. I think it adds to the prestige of betting, like a novelty to be savored. This is why Vegas is so huge; it is an Oasis for the degenerates in us; it's prestigious because it's detached from everyday life and considered risque, which makes it more appealing.
If it's shoved in our face everyday, like you say in Europe, I think we start to take it for granted and is loses its luster.