I don't bet what I can't afford to watch. The sweetest victory when you are seeing your bet team winning. I always want to watch games and with inline a bet on it. I don't usually bet as many as I can because it hurts most my pocket. I only tend to bet big amount with a single game in a day.
I agree sports betting is a lot easier if you watching the game and have some information about the teams.
And that's why it's better to bet only on a single game per day. But if you are that type of person that has a lot of TV screens on your home or while watching a basketball game on your TV, you can have updates through your desktop/laptop and even smart phones it's up to you if you can be a multi tasker.
The advice of the experts is to be on selected games where you can study the event carefully so you can cap games properly, the thing is most of us value more the fun so we will choose more games and we sacrifice already the things that value most which is to analyze games.
I have that kind of attitude that's why I can relate to it very much, I used to tell myself I will limit but when you see a lot of games in the board you will be tempted to play most of them.
But there are some bettors who have a lot of time to study as many as 3 games per day before the said game. And as you said, there are gamblers who attain to have fun by choosing more than 1 games and it's their choose. As long as they can handle things out, that will be good for them.