I have a Bernina and love it, I have had it since 1983, so starting to look at new machines, although I will keep my Bernina, but it is as heavy as a boat anchor.
There are some other really reasonable priced machines, specifically for quilting. Find a dealer that deals in Baby lock and Janome, go try them both. They are great machines, I have tried both. the Janome is a little more expensive than the Baby lock for quilting. I am leaning toward the Baby lock. They have been represented at the last couple of quilt shows I have been to. Quilters are really happy with both.