Most of the time I see the 'repair person' go to the longarmers home. This is because the machines are heavier and you don't just sew with them sitting on a table. And as dunster stated above they are made for us to take care of. I know my machine doesn't have any hidden places, the bottom is all open and I can see everything in the needle arm area. Not sure if I would be happy with a machine that was all enclosed.