Initial costs are based off the wage, that's true. You also have to look at how important that player is to the team.
Horrendous injury aside I'll be amazed if Ferguson leaves us for anything less than the rumoured Turnbull fee
Celtic would happily pay more if he was coming from a foreign league. When you're told for years that your players are only worth 'x' amount then you're programmed to believe it.
I absolutely loved his commentary and insight but it's a lot easier to say what's wrong when it's not your responsibility!
Hoping he gets another suspension though.