I don't think it's unnecessary at all, I mean if you look at the teams who generate the most money for the league, Toronto is at the top and other Canadian teams right behind. Having said that I'd like to see one somewhere other than Toronto, perhaps Winnipeg because they want one badly and they have the support from the Province already.
Id support another team in ANY canadian market. Hockey needs more teams at home. Tired of watching bettman force hockey where it is not wanted.
I say bring back the Jets or Nordiques.