Pogue Mahone
Closet Gooner.
Less than half what Ronaldo went for? No chance.
He will cost Barca considerably less than Ronaldo cost Real Madrid, that's for sure.
Flashy strikers/wingers always cost more than their less assuming team-mates in central midfield. I know you think Fabregas is one of the world's best players but his reputation outside Arsenal/PL is nothing like as high as you think, if for no other reason than he can't even get his game for Spain.
I would say that Fabregas will cost them about 20-30% more than Real paid for Alonso. If that.