Joe, I have so many machines...I use all of them at least once a year. Enough to keep things moving right.
I don't like having to pick the old Singer up....just tooo heavy. I use my TL-98 Juki everyday as it is super fast and since I sew for up to 12 hours a day....need something that is at least semi industrial. I would feel just awful if I hurt the machine by using it for so many hours.
Someday, I will have time to just quilt for me....then I can use whatever machine I feel like using that day.