I have two that I sew on, one down in the dungeon (cellar), one in the sunroom, that is also where my TL18LS longarm is at, a serger....and a CE150 Singer Futura I use for embroidery.
I can be sewing on one, embroidery going on the other ...and the quilting machine going...all at the same time. Have to love the Qbot for that!
I also have a treddle that was my mom's, a Thompson mini industrial I use for upholstery sewing, an older Singer in wood case & 4 or 5 that we got at auctions at storage units...those I kept after cleaning & servicing them...was going to use in giving quilt classes...but that hasn't happened yet.