Serious question, have you tried them both for portability? Everything else being equal go with better case. Consider whether you will be using a wheeled case or hauling yourself plus gear? My cheapo brother doesn't have the "integrated" case where it is a cover and your hand fits in an opening to hold the machine like my last one did, it just has a box
Fortunately I don't have to take it with me very often. If I did more I'd definitely get a rolling bag.