I started scrolling 20+ years ago. I borrowed an old Dremel scrollsaw from my brother in law. It was one that needed an allen wrench to change blades unless you used pinned blades. So I basically cut out shapes and such for a few projects I made at that time. I was frustrated with the saw so I upgraded a little to a Ryobi I believe wasn't much better but blade change was a lot easier. After this I started doing more fretwork and was hooked. Since then I've upgraded saws 3-4 times and now I do a lot with the scroll saw. Intarsia is my favorite, then fretwork(portraits) I've even use the scroll saw to cut designs into my pen blanks. Everything I do on the saw was self taught, I did check out a few books for patterns and some basic tips when I first started. Of all the tools in my shop the Scroll saw is my most used.
I have helped a couple boys learn to scroll and do intarsia in the last couple years. Now I have a coworker wanting to learn.