There should never be more than 20 GPs in a season as an absolute maximum, otherwise each individual race starts to lose it's value and excitement.
WTF 
!! Explain to us all how having more than 20 GP's will 'lose it's value and excitement' to us F1 fan's ????
I'd love to. Say you had 8 GPs in an F1 season, one per month, and then a 4 month break. You'd be going absolutely bananas with excitement when a race finally came around; you'd be glued to every second of it, all the practices, everything. Obviously 8 races is too few, but as you go up and up there's a saturation point, not only in terms of the teams being able to keep up with the calendar, but also in terms of a viewer's excitement at a Grand Prix weekend. If there were 30 races in a season, one per week with a 5 month lay off, wouldn't they start to lose their uniqueness. For me one of the exciting things about an F1 race is that I have to wait 2 or even 3 weeks to get my fix, so when it finally arrives I attach more value to it. It's like holiday. Too much of a good thing and it starts to lose one of the factors that made it enjoyable in the first place.
I think 20 is quite a good limit, because you get pretty much a race every 2 weeks with maybe a 3 week gap at one or two points in the season, and then you have a longish break to build up the excitement again after the climax of the last few races.
And there should be a limit set. Maybe you think it should be higher than 20, but the danger in not setting any kind of maximum is that you just keep saying 'Oh come on, one more can't hurt.'
This is just my view anyway. Maybe you'd love to have a GP every weekend for long periods of the year, and would appreciate each race if there were 30 just as much as if there were only 10. But for me the sport would lose one of the aspects that makes it unique, that sense of having to wait for good things.
but man oh man those 4-6 hr's would be AWESOME 
!!!
