Fans (and that’s all fans not nufc fans) always overprice their own players because they want as much as possible. I always think would I be happy spending X amount on that player if we were buying him, if answer is no, then you can’t expect to get that as a selling team.
ASM is just like traore I think. At a lower prem team who want to sit back and hit on the counter he’s useful to get you up the pitch. But he’ll be injured for 1/2 the season and games he does play will frustrate because he’ll look a world beater until he gets near the box and suddenly look like a league 2 player.