I've seen walking poles range from <£10 to >£100 - and to a casual observer there doesn't often seem to be much to distinguish them, with both having good grips and shock relief / suspension. What makes one better than the other, and is it worth investing in one which is more expensive if it's going to be extensively used?
Each person is unique and may need one feature over another. But here is my take on the features in a rough order of importance:
A good set of poles should last a lifetime, so don't be afraid to spend a few extra bucks on a better model. If you're about to be attacked by an animal or you start sliding towards a cliff, you'll be glad you didn't trust your life to the cheapest thing you could find.