The thing about value bets is that they are tough to find. Some even avoid this kind of strategy because it's prone to manipulation. You say they are mostly in small leagues, that's where rigging mostly happens, so it's best if we either avoid them or have someone inside that will feed us the results.

When that happens, they are not value bets anymore. You might lose your bets because someone or some group is behind the scenes to control everything and that's also why there are fewer gamblers who place their bets there. I'd rather take the risk in professional sports because rigging can hardly happen.