The same is true of all top level footballers at all top level clubs. Thing is you normally don't pick them up for £50m up front.

Better to pay £15m (or whatever) a year over 4 years than £100m up front and still have to pay £12m (or whatever) a year.

If Haaland is only worth £50m, we'll be lucky to get the bus fare home for most of ours!