This. When Middle was born, since I still had the stroller I'd used for Oldest, I used it; it was older and grungier, but it still worked and was not a health hazard. (And even if I'd needed to replace it because it was now unsafe, I could've gotten an even nicer stroller for cheap or free from an acquaintance offloading their baby stuff.)

Babies need less-stressed parents more than they need fancy stuff.