Oh and its easier to leave it set up for FMQ than to set it and test and adjust and retest until it looks right.
and then there are the emergency repairs. My 17 year old nephew ripped the seat out of his dress pants on the way to pick up a date somewhere and it turned out to be faster for me to fix than to go all the way home and find another pair. He's a jeans or camo person and doesn't have many slacks.
I wouldn't have mattered WHAT I was doing but it was nice to just turn Cinderella on test and sew. this is a luxury that love!