I'm fine with his salary right now too, I just don't think him being traded would be a big loss to the team.
I don't think Penguin fans are exactly salivating over him either. I think they see a team that had good forward depth last season and needs a defenceman, and have become obsessed with the idea of McGinn. Pens fans also offer up weak returns for him too, so I'm not sure they value him that high. Most probably haven't even watched him play much.
There's also no way McGinn scores 35 goals. Duchene has been his most common center this season, and I'm sure last season too, and he barely scores 20 goals. Crosby isn't going to add 15 goals to that total. Sure, he might score close to 30 in one season, just like Jones and Stewart, but he is a 20 goal in pretty much every other season.
I like McGinn, but he doesn't score consistently, he doesn't hit consistently, he doesn't really fight, he isn't that great defensively. He's a good top-9 forward who could be traded to make the team better. It's not that I want him off the team, but when people people are talking about him and free agency, he is not the type of player you spend 4+ million on.