All players, including the ones who get 300k, get bonuses and signing on fee's, probably proportionately bigger ones too. And saying we're the only ones out of the clubs interested that were willing to pay those wages is a completely different statement, though I still call bullshit considering PSG were widely reported to be one of the other clubs interested.
That being said, I agree with your general point that we're willing to pay the market rate, but I think the relative speed and ease of the Ozil, Sanchez and Cech deals are probably a better indicator of that.