I don't understand why "risk" is being mentioned around a lot in here. Buying every player is a risk. We bought Di Maria last year, who was coming back from 2-3 seasons at the top level and yet he didn't offer us much.
We are going to be fleeced by any club for any player and that has been the case for so long. Also, people calling for waiting to see if he has a better second season, what if he does and his value doubles and Real come in for him?
At this point our striking options are Rooney, ageing RVP and unproven Wilson. Kane would give us one more option/dimension and will not need much time to settle in the league compared to the other options. So, I think even at 50 mill he is a risk worth taking if stories are to be believed. The prices have been hugely inflated over the years and if he can deliver 20-25 goals and win us the title, it would have been a brilliant signing and well worth the money.