I have 2 sewing machines and one embroidery machine that came from Wal-Mart that are Brother machines. One is 18 years old, one is 10 years old and the embroidery machine is 3 years old. All three have drop in bobbins. They all still work great. I love mine. My mom has one from Wal-Mart and she is happy with it. I bought my daughter-in-law one from Wal-Mart for Christmas several years ago and as far as I know it still works fine.
Wal-Mart used to sell a Brother quilting machine. Not for sure if they still do. It had a lot of quilting stitches, a quilting foot and a larger throat.