That is a good question. It irks me that the one and only time I took my Elna 7300 in for servicing the charge was $160.00 plus tax. AND the one thing that needed fixing was the self threader which was not fixed. I know that there are a lot of lint bunnies down deep that I can't get to. AARRRG! That is the main reason I love my vintage sewing machines, I can maintain them myself.