£24million was the price tag to bring a Barcelona reject to the Etihad in 2010. Many were sceptical and wondered how Toure would cope with the physicality of the Premier League.
Eight years on and one would be hard pressed to find a football fan that can't appreciate his performances for City over the seasons.
229 appearances and 59 goals has given the club eight trophies: three Premier Leagues, one FA Cup, three League Cups and a Community Shield.
Toure was part of City's rise to the top of English football and that is something money can't put a price on.
On Wednesday night, he will walk out onto the Etihad pitch as captain in his final game for the club that has given him everything, but who has certainly got their worth in return.