What age/stage was your bub when you stopped using a baby swing? My 11 week old dd is in her swing a lot and it's great for helping with settling in particular (saves my back). My mum will be looking after her a day a week from 4.5 months and I'm not sure if she'll need a swing or not. She has a bad back & my dd is big (already 6.3kg) so prolonged rocking/patting is not easy - although she does settle pretty easily most of the time. There's one on mega special at ToysRUs ($59) and I'm not sure if I should get it or not.
I had a swing for my ds but I didn't have it from a newborn and I can't remember when he stopped using it.