I'm with you Valerie. My Bernina 630 is just too heavy (and delicate) to lug to class, so I went looking for a portable Bernie and ended up with a vintage 801 Sport. It's lightweight, has about a dozen fancy stitches and comes with a handle for portability. Of course, it also come with those beautiful Bernina stitches too.
Personally, I've given up a few bells and whistles for the durability of all metal construction and complete reliability of the older machines. Check 'em out. You might like them too.