In the interests of debate, I would suggest that signing Seamus Coleman from Sligo was the best piece of business in the history of football. He cost about £60k and, at his peak, I would suggest he was worth 50 times that.
What makes it so much better than that for me is that he is Irish. I saw him at Sligo as a kid, and knew he was special.
He got lots of stick on here and in my evangelizing of him some thought I was related to him. If we ever did a better deal, I would like to hear about it.
Also, I was mightily upset when the lamentable Martinez sold Duffy. Now I know, no matter how much it upset me, we may have made worse sales, but what beats that?