i seem to very lucky. i have the viking #1, the janome 8000 (my workhorse), the janome gem (for the beach house - now for traveling because it's small) my new longarm,and a very old factory blindstitcher that i bought at a yard sale twenty years ago for $100. since i can't take in the blindstitcher because it's attached to the original table, my guy comes to the house when i have a problem with any of them and does a thorough cleaning, adjusting, etc on all of them at the same time, right in my house, in mysewing basement, and charges me $200 plus parts. i only call when something's broken. i clean them all myself and he has never said they need to be done professionally yearly even though four are computerized machines. if he retires, i'm following him.