I'm currently thinking about buying a band-saw. While searching in my price range, I found that some models offer a single speed, others 2 and some even 3 speeds. I'm fairly new to band-saws and I wonder what's the purpose of multiple speed. Is it a useful feature? When should I change speed?
I'm planning on doing mostly re-sawing and a bit of curves. I currently have no plans for metalworking.