Look at this logically…
Lets hypothetically say we did manage to sign Messi. If we paid him say £30m a year for 2 years that’s an investment of £60m! £60m for Messi! That’s peanuts, yes on paper it’s a ridiculous wage but had we got him last year he’d of cost £100m just to sign then a wage on top. It’s a no brainier as a free agent.
The PL would also benefit from him joining, the tv views would rocket, bums on seats would increase and sponsorship for the league would increase be it TV rights, or soft drinks etc. Whatever, but sponsors would line up for City and the Premier League.
I’d argue other clubs would benefit too, smaller clubs would sell out as fans want to watch Messi live. It benefits not only us but the league which is why La Liga have let Barça get away with what they have for so long, they benefitted.
Just my opinion of course… Doubt he’d sign for us but financially it makes sense and commercially it does too.
But PSG are reportedly offering him £35m AFTER tax. Therefore his actually wage would be nearer £75m per year. And we don't even know what the success bonuses are on top...