@Heinstein i have to agree with your argument mate.
I can see why people are a bit sceptical, regarding his current PB output. But if Neymar leaves, Mbappe PB scores will increase, he will also most probably be on pens. Plus he's already shown that he's not bad for MB.
Given his age, plays for France so will go deep into euros/WC, and potential for at least 2 more transfers in his career (maybe even to prem)... whos to say he wont return his price in career div.
Not to mention opening up MB to European sources, as you mentioned. Its the world class players that will benefit more, and Mbappe will defo be up there.
Sancho has also stretched the market, so under 9quid for mbappe doesnt look too bad now.
Has convinced me to join the Mbappe party, will start topping up and use bonus money too.