They were able to bring in several young players at prices that were not that expensive but within few years these young players could have extraordinary playing skills, this is why Serie A has team that has been able to win important competitions such as the UCL several times.
Look at how Juventus, Inter Milan, AC Milan always show their mainstay players, in the past, these three teams were the best at developing players and making the players become list of great European players.
I agree with you. In fact, I have never heard of a Serie A team that has a lot of money to buy star players. Many player transfer records are often broken by La Liga and English League teams. But they are still able to produce great players and become one of the best European leagues. Next season Italy has 5 clubs that will play in the Champions League. They are in second place for coefficients. This proves that Serie A clubs are great even though they do not have rich financial backing.
From the past until now, Serie-A continues to be popular league, in fact no other league has been able to shift Serie-A position in terms of the quality of highly competitive competition, even though several other leagues have experienced very significant developments.
By being one of the best leagues and providing the most representative teams to enter the UCL competition, Serie A is still the league that most young players who have potential or even those players who have had good careers dream of.
But unfortunately it has been long time since we saw Serie A team capable of winning the UCL, if in the future one of them can win the UCL then this can improve the quality of Serie A itself.
Last time they were able to reach the final was Inter Milan but they failed to win the title because they were defeated by Manchester City only with very narrow score of 1 - 0.
It just that in this one season we see changes in each team, there will be possibility that in the next few season one of the Serie A team will be in the final in the fight for the UCL title.