I do enjoy the variety of materials I can use with the bowdrill. It has been fun looking for new spindles and hearths. I also enjoy carving the bow drill spindles down from larger pieces of wood. That is alot better then just pealing the bark off of my hand drill spindles. Add the art of making the actual bow in there also. The bow drill has definitely been and will continue to be a really cool addition to my lifestyle. I find the hand drill a lot more challenging, and challenges drive me. Plus I just can't get over the wow factor you get when you make fire by just using your hands and a twig. Why are your preferences seasonal?