Serie A is boring because there aren't money, every team spend too low money but every year someone make a miracle ( atalanta this year ) spending 0.
In comparison in UK they spend maybe mmm x400 than italy but they don't win nothing from years.
In terms of the game indeed Serie A looks boring but from the boring game, gamblers can take a lot of profits because they always win bets. Why is that? Because various matches in Serie A are very easy to predict.