Mine is a 14" 1hp bandsaw from JET. I love it but only because I can switch blades and cut metal, bone, and wood on the same tool. I also use it to cut rawhide into strips. I don't use it much on staves unless I want to remove a lot of wood but I will not cut anything thicker than 4" even thought he saw can handle 6".
I didn't have a bandsaw for the first several years of building bows and I realized how much time I lost by not having one. If you need to make a lot of bows, you will definitely need one. If you are only making one or two a year, you probably don't need one.
Tuning a bandsaw is a pain until you've got your system down. It took me a year to get used to tuning mine the way I needed. I sometimes cut really dense material: copper rods, steel rods and nails, bone, ipe, osage, hickory, plastic rods, etc. and then I'll switch to really lightweight material like rawhide and feathers all in the same day.