What is the benefit of staying with one method, lineage or Dharma tradition? I've been thinking around this recently ... we are privileged as a generation to have access to so much information - contemplative methods, traditions, teachers, books etc. How does this inform our Dharma - finding and sticking to one method, tradition, lineage or ... studying and practicing many in a more eclectic way?
This leads to great breadth, but little depth. If you want to get to the depth of a practice, where the true wisdom is, you need to stick to a practice and see it through. As Goenka said, if you are looking for water, you dig a well. But you don't start digging a well, stop digging down after 2 feet, then start a new well. Over and over again like this, you will never find the water that you are looking for. You must dig down deep to the depth that the water table is at. So you may start one or two wells, but you don't stop digging until you've gone to sufficient depth to know there is no water there.