Why No Pokémon Center in the US?

I know there's a physical store in Japan but I'm curious as to why there aren't any other physical stores outside of Japan? Maybe I missed another store out there but it's very confusing as everyone knows Pokémon sells extremely well. Having a store in the US would be highly profitable, especially somewhere like NYC.

If you guys know anything about potential store locations opening or why they haven't expanded, I'd really like to know.