That's a bit of an exageration. There are not that many active velodromes in the US, and very few that host several races per week. Furthermore, most velodromes are clustered in a few areas of the country, and most people live more than 100 miles from the nearest velodrome. I now live 60 miles from my velodrome (Superdrome), and that's the closest I've ever been to an active facility.