It also has the advantage that I can make lots of nice and useful bits of gear.
Most of my pots and bottles now have their own deerskin bags. In the case of the cooking pots these are very practical in keeping soot and tar off the rest of my gear.
For the rest, this is mainly because I can pre-cut some leather before a trip and just take a simple sewing kit consisting of an awl, thread, needles and a small block of beeswax to treat the thread.
All these leather bags would make a real lightweight backpacker grind his teeth of course, but for me, they give an old fashioned touch to some of my modern gear and add to the simple pleasure of of doing an everyday task.