For me, there are just too many negatives to be excited about signing him. Hi stransfer fee would be way over the top, we could get Haaland, and cover his first years salary on what Kane would cost. He is certainly towards the end of his career, and has a history of injuries.
Add to the above, I would factor in his performances this season, when his head has been off. He would be under twice as much pressure with City, we have copped enough in the media about 100 mill Grealish, imagine how Kane's head would be if he couldn't score for us in the first few games? Much like Grealish and the rest of our squad, he wouldn't be playing every game unlike at Spurs, so his head could have been shot for a lot longer.
I understand he may well have scored a bucket load for us, but he could easily have gone the other way, as most struggle in their first season with City.