I took my 1996 Viking Rose in for service for the 1st time last year. It cost me $149.00, plus7% tax. I went with a neighbor to the Viking Dealer the other day as her high end Viking embroidery machine was making birds nests. They said cost, without parts would be $249.00.
I treat my sewing machine kind of like my car. I take care of it and service depends on how much I use it. I spend more on servicing my riding lawn mower than I do my car.