They don't go to the US because they don't think it's worth the time, energy, and money investment. Versailles snubbed us on their world tour twice too don't forget (although that was for ~different~ reasons).
does anyone else remember that crazy person with 50 page thesis on how US restricts band touring to reduce cultural competition etc etc (which kind of reeks of bullshit)
@Sai idk, I didn't have much trouble getting a 2 year long US visa, and I'm like Russian, which generally complicates stuff by tenfold. but I didn't need to get a greencard or a business visa, just a basic tourist one.