What kind of interest do you think hockey drew in Florida or Texas before they got NHL teams? Is it much different to the level of interest in London or Milan nowadays? Jari Kurri played in Milan in 1991.
I think it's safe to say that people in Texas and Florida are also way more interested in football than in hockey. There are only two countries in the world where ice-hockey is number one: Finland and Canada.
I think Latvia has it as number one too. In all honesty, London *might* be able to support a KHL team, I mean they are supporting like 10+ pro football teams, so why not.