He's evolved a lot this year, gained strenght, a lot more determination and seems to have matured. No antics, no complaints from team mates about his attitude etcno mention of buyback anywhere - he hasn't really done anything to put him above 15-20M has he? I would have him "worth" less than that based on reports on his loans.
Being so rich and famous at 15 years old must be messing with your mind, takes time to become a man after that type of stuff. Lots never grow out of it, he seems to have done so this year