I bought a Viking Rose that had the attatchments for embroidery. I was told when I bought it that it worked. I haven't even put it on the machine to try it. I bought it in 1996? So, obviously, some attatchments are not for me.
Now my serger feet, I purchased for a reason and used each one for either a Bridal Gown or Bridesmaids dress or the flower girls dresses. Some of the feet were for adding pearls/ribbons on the edge of the veil.
When it comes to extra stitches, I don't use that many decorative stitches in quilting.