I would have to disagree. Advantage play is indeed a valid way to go however if you are just starting out the variance in not laying such bets can see you lose your bankroll in the early stages which could be demoralizing. I would only suggest using this method when you have a big enough bankroll to be able to take the losses.
As for missed the boat you can still make 4 figures each month if you put in the time so still very worthwhile