Retegui's current performance is indeed extraordinary, because the proof is that he managed to become the top scorer in Serie A last season. So with that, it is no wonder that Al Qadisiyah wants to recruit him. But the problem is that Retegui will definitely think twice if he decides to join Al Qadisiyah, because although financially it is certainly very profitable for him. But in terms of career, of course it has a little effect on his reputation. Although currently playing in the Saudi Arabian league is also not bad for him. But still if he plays in Europe, his name could be much more famous.
In addition, according to the news circulating, Milan also really wants Retegui too, even reportedly Milan has made a direct offer to Atalanta for 40 million euros. But Atalanta rejected it, because maybe at that price it is still quite low. So with that, currently Retegui is really being targeted not only by Al Qadisiyah. But in essence all decisions are up to Retegui, so if he chooses money then he will definitely join Al Qadisiyah, but if he still wants to pursue a career in Europe, Milan will definitely be his choice, or he will remain at Atalanta.
I may be wrong, but because the Saudis are making very high offers, the player market has started to increase the prices of players when they realize that a Saudi club is interested in that player. For example, if a team has player X who costs 30 million dollars, all it takes is for a Saudi team to make an offer of 60 million dollars for the team that has player X to increase the price to 70 million, so any team in Europe that wants player X will have to negotiate that high amount. This is putting players who are not even worth a high price as if they deserve that high value.
The reason why any player would consider playing at Saudi league is money, nothing more. Most of them make more money in a single year than they can make all their life in Europe. That is the biggest difference and while Retegui could decide to cut his Europe adventure short and go to Arabia, he could also make a huge amount of money from it and that would mean that he would be able to actually profit from it at the same time. I can't say if that is a smart move or not, but I can say that he would be financially doing better.
We have seen some players who went to Saudi league and then made a comeback too, so that is already proven to be possible for many players, and if he wants to, he can play for 1-2 seasons and make all the money in the world and come back and play wherever he wants.