I have had my Brother surger for about 12 years. I use it for making flannel chemo caps & for edging anything that ravels easily. And also for garment sewing, especially knits.
If you are not sure, I would go to the dealer & ask if you could just practice with one or take a class & see if it is what you really want. If not hooked on it, money that you would spend on one could be spent on fabric for quilting.