Luiz is only just turning 22, and you're going to be happy with a 20MM return on our 15MM investment? Absolutely not, McGinn is barely worth 20MM, it is Luiz who is the uncut gem in Midfield.
Hustle and bustle and hard tackles easily deceive, for years people thought Nathan Baker was going to be John Terry reincarnated because he put his body on the line and had numerous tackles and blocks per game. All that told you was he positionally inept. Collins and Dunne were similar, amazing recovery defenders because they were often not positioned very well. Thats why Dunne had so many OGs.
Luiz is the most complete CM we've had in awhile - a great range of passing, good positioning relative to his experience, a great strike of the ball, comfortable on the ball, and willing to carrying the ball and receive it under pressure. No player is going to do what he does and seamlessly slot in for less than 50MM.
I don't know how you can reconcile City spending 35MM to bring back Luiz (22) to replace a player (24) they spent 60MM on and see that as a good outcome for Aston Villa Football Club. That scenario reinforces that it is a shocking outcome for us, we'll have lost potentially twice his value and have no replacement except for a player most think is pure dirt (hourihane or Marv - pick your poison).