I don't know how a third LA team will do when the area has two teams right now, and the team only supports one of those teams. The Clippers at least have a sexy rookie player so perhaps they will start supporting them in masses too.
New York City has three NHL teams, and only two of those teams have good attendance, those three being the Rangers in Manhattan and the Devils in Newark, NJ. The Islanders are the Clippers of the league despite a hard cap and revenue sharing but they have a horrible arena lease and an out of date arena which doesn't make things any better for them.
The LA area has almost 18 million folks, and they could handle a third team, because most NBA teams serve a metro area of less than six million people.
The Maloofs are banking on this with the LA area:
1. There are plenty of people who want Lakers season tix but don't wanna wait forever to get off the waiting list.
2. Plenty of people in Anaheim would buy the tix for the LA Kings for a closer drive to see NBA action rather than drive 30 miles to LA proper to see the Clippers or Lakers play another team.
3. With the Lakers getting a new TV deal, there will still be a regional TV provider that will play LA Kings games easily.
By LA Kings I mean the Sacramento Kings assuming they move to LA. There is an LA Kings team that plays in the Staples Center, for the NHL.