Thats a good strategy too. Always found a better chance to win even the prize arent that of favor since that usually what odds do and lure the players with the odds they give to general public. But sometimes its okay to bet on those to keep winning. Underdog has tight odds but if you trust on how they play then its good. Gotta need to trust.
But there are some that are not worth going for. Example are odds lower than 1.1 which is not good to go for because I do not think a bettor can go with such odd at least 10 times and not lose which is right to give you the money you are using to make the bet as a return without losing. I go for strong teams and most bettors also go for the strong teams. And with what I posted before, if Real Madrid is playing good, the odd will be far lower than 1.5 in reality.