Someone should set up a Bore tournament... although I'm guessing there might not be enough Wii U owners here?
They basically function like rooms, but the rooms can have rules... you can have it so people join a team, specify whether levels are random or to a vote, you can restrict weapons, shells only for example.
You get a big list of popular tourneys when you pop into the tournament menu - 'no items', 'frantic /v/ weekends', etc. I see Reddit is represented on there too... but some people set theirs up to be private. I'm in the neogaf group and that's pretty good in terms of ability and people always being online...
It'd be really cool if they do update it again in future when they add DLC, maybe expand that stuff even more.