I made the mistake of answering my mother yesterday when she asked how many machines I had now. I was sitting next to my husband and he said "7 or 8" at the same time I said "15" and I got a surprised look from him. But I counted them off and he knew about all of them. One is now gone, one is a parts machine, and 3 more likely to go by the time we move early next year. I think 10 is a good number.