It is certainly true that F1 hasn't always been exciting, but the last two years were much better, with championship battles going right down to the last race of the season, and plenty of activity throughout the year to keep us entertained.
Although the 2009 season is only two races old, there has already been an increased amount of overtaking thanks to the new regulations.
I don't believe the points system will change the way a driver approaches a race, but now the cars are so radically different, it's certainly worth tuning in again, because the action has definitely changed.