Yep, as my DH says, "there is no redundancy in tools". When I managed to throw out the time on my Bernina 440 recently, I pulled out the Bernina 910 and finished the project that evening. Current machine count:14
1 Bernina computerized, 1 Bernina Electronic, Bernina Serger, Bernette mechanical, 70s Viking, 70s Elna, 70s Kenmore, 2 Featherweights, 3 Singer 301s, Singer 66-6, Singer IF treadle