Cristiano Ronaldo always sets new records and this season he also set a new record again thanks to the many goals he managed to score throughout this season. Maybe he is almost 40 years old, but this player still has very high enthusiasm and might even beat some of the young players there.
He is an ambitious man and player and he has scored 759 goals so far in his career. If nothing happens seriously with his body, he will try to play as long as possible to hit 1000 goals. Assuming he can continue to score 40 to 50 goals in one season, it will need him to play 5 to 6 more seasons and this requirement is very challenging for Cristiano Ronaldo.
https://www.transfermarkt.com/cristiano-ronaldo/leistungsdatendetails/spieler/8198Cristiano Ronaldo chose a league that fit him in terms of performance and budget. We saw how he was desperate with Manchester United and Juventus in the previous years. Since joining Al-Nassr, he found his stability and form.
Money is key to convince Ronaldo to join Saudi Arabia and less competitiveness can be another important key. This league helps Ronaldo to achieve both, less competitiveness so that he can prolong his career by avoid injuries and score more goals.
To get 1000 goals, with possible 5 to 6 more seasons, it is still a very challenging target for him. 6 more years, he will be at 45 years old and it's unbelievable that from 39 years old to 45 years old, he can stably score 40 to 50 goals every season.