While I agree I don't like the way things are run sometimes, this is sad news. I grew up watching Mario in the late 80s and 90s and still having him such a big part of this team is amazing to me. I really feel an even more sense of pride having him own the team.
As others have said though, taking my feelings out its probably a good thing. Mario never likes (or liked) the spotlight and attention, so it's not like we hear from him much anyway. Personnel decisions have been horrible, and Mario most likely just bought the team to get his money. I'm sure he felt a part of it and wanted to keep it here too though. At this point there's nothing left for him to help hockey here. He got us out of bankruptcy, made us profitable, and got us a new arena. What more could he possibly do for us?
I wish him the best of luck and just hope he still has ties to the Pittsburgh area. Not too many athletes play somewhere and are a part of that city for decades.
And while it won't happen, I'd love Cuban to own us. Not only would a local person bring us that sense of pride, but a character like him is needed in the NHL. He may be outspoken, but he is entertaining and a fanatic about his team. Didn't he say he was interested in the Pirates a few years ago? Why not the Pens?