From what I remember of the world cup he was the best player in the tournament who didn't play for Uruguay, Germany, Holland or Spain.
If we got him for a knockdown price he woul definitely be a good squad player.
And signings made to 'sell shirts' as many have alluded to...well things hav moved on alot since the days when this may have been a consideration, players wages are so high that this has no bearing - Only if wages were <£30,000 pw could a player actually pay for himself, and thats the real BIG players like Beckham etc.