Low hanging fruits will help you to get enough energy, so that you can keep climbing that tree all the way to the top where there's less competition and the tree's best fruits can be found.
But you've gotta make sure that those low hanging fruits don't turn into your main strategy.
Because those low hanging fruits will be gone sooner rather than later.
And if you feast on those low hanging fruits for too long, you won't have enough time, energy and resources anymore to find something new...