Most household appliance do the same.
i bought a tiara last year went to pick up extra bobbins and the lady told me Phaff as the same machine I said whaaaaaa, I don't like phaff , I have a Sewing machine that as given me nuttin but heartache, she said really , I said yes really, she said I've never heard a bad thing about Phaff, I said U did when I brought it here to be fixed and U offered me 300$ for my $2000 machine that needs fixing after every quilt. She said oh! Paid for my bobbins and out the door I went.
sorry for ranting still peeved with the Phaff.