Cesc, from an interview with l'equipe.
"It was not a question of life or death. If Barca had not come in for me, I would have played my whole career at Arsenal. That was certain."
"Yes, there are teams who pay better, but it was always clear to me. Either go to Barca or stay at Arsenal. The last thing on my mind was money and I have come to Barca and I earn less."
Hmm. Well he plays less, he's not club Captain and the team is not built around him so it's no big deal that he's not paid as much.
He's presuming we'd have kept him for his whole career of course. Ah, no, he'd have probably been eventually sold on for mega money if we'd ever had the opportunity to put him on the open market.