Not every single one, but most, yes! For those I don't get to see, I watch highlights and I read up on what people and the media thought of their games.
To put Kagawa - a Bundesliga player of the year - and say "he was bought to sell shirts" is insulting and borderline racist. I mean, you may as well say that Ronaldo by Real Madrid was bought to sell shirts, considering that's exactly how they pay his wages (when they bought him, they declared it doesn't matter that he cost £80m because they would make that back in shirt sales alone).
I'd say Park proved over many years that he proved himself just as much.
Dong I can't argue against. xD
And yeah, Diouf has been touted as a potential target for Newcastle or Spurs, I think... I forget.
EDIT: Rose-tinted glasses? Maybe, but I'm certainly not going around saying we can win the league. No chance. Next year? God knows. I'm not expecting it. Obviously every fan hopes, though. I'm naturally optimistic, though, not just about football. I just try to see the best in situations. As for the players, I stand by it all.
