Morata barely played for Real, he came on as a sub to get 15 minutes and now he's worth 20mln all of a sudden, just because he's a Real player (price wise). It's kinda retarded that his price is 20mln just because he dominated with youth Spain squad.
Verratti was playing in every match and was an obvious success, which he is. Morata on the other hand is potential and nothing else. So he's a bigger risk by default.
Immobile had 20 goals in Serie A, best goal scorer, and was paid less.
It is today's market where prices are inflated, but it's also a rip off.