I would NEVER by a cheap machine from Walmart even though it says Brothers. Go to a reputable Brothers dealer and talk to them. They do have less expensive machines that have many fancy stitches and sew very well. I agree that they are not an equal to your old Bernina or to one of the top of the line Brothers, but they do a decent job.
The ones at WalMart are not really a Brothers machine. I think they are farmed out.