He had 3 appearances at PSG's first team... Yes, he was hyped up but not at all to the point where Bayern would want to pay a hefty sum for him. Juve definitely moulded him, training with the first team is not te be neglected either.
Agreed on the buyout clause. We're obviously against it and a gentlemen agreement is probably the closest thing to it, we'll agree to.
Don't get me wrong, being at Juve for a year and training with the 1st team didn't hurt. But IMO, Bayern's deal was more about the potential he had demonstrated all the way through his development, and his obvious physical attributes. Fairly strong and fast from a young age, debuted for PSG at 16, and was a promising player in the France youth setup.
The deal with the Germans was a 2 year loan, with option to buy. Bayern paid 7 Million to develop him for two years, it was a fairly low-risk move for them, given his potential, and their financial standing.
Gave them the opportunity to really get to know the player and his habits before shelling out a more significant fee. By that time, the additional 22M or whatever was pretty easy to say yes to, given the market, his performances with the senior team, his age and obvious potential. Taken a bit of a step backwards, but still just 21 years old.