I have had a similar thing happen to me I bought a Bernina 440 of ebay. I read the description very carefully and when I went to collect it I knew it had hardly been used and was a great bargain. When my DH went to the local sewing shop to buy me more bobbins the shop owner was very short with him. Went on about no guarantee etc. I knew all this and took my chance. I think he was a bit cross that I had not bought it from him. I am very pleased with my machine, don't care that its not brand new, but know that the previous owner had looked after it. If we are happy what does it matter what other think. Just enjoy your machine and don't worry.