For travel/Holiday definitely. Otherwise it's not necessary. We have a travel system I use daily, but when I go abroad I will be buying a stroller x

I swapped to a stroller with my eldest because it was lighter, folded down easily & took up less space. Was easier to use on public transport & just generally getting about with. I'll probably swap to a stroller again when Max gets bigger for the same reasons. But I guess its what your happy using.