i've been sewing for 42 years & still have never used a serger- i don't know any reason you would need one- some people really like them- if you are interested maybe you could try one out somewhere & see if it's something you might find a good thing to have around- i actually bought one once- watched the video that came with it- i think my daughter actually threaded it & used it once- then it sat in it's case under a bench for a couple years & i finally sold it- i really had no use for it- my sewing machine does anything i need it to-
i know...they finish edges- i learned to finish edges on an old singer many years ago in 4-H sewing
i know they cut too...so does my rotory cutter & scissors...i know they are great with knits.,..how many knits do you use in your quilting? me- not many-
something i've had no problem living without all these years...