I start some annuals and perennials from seed. Some of them I wintersow, some I start inside under lights.
Some annuals I can buy so cheaply that it's not worth my effort to grow from seed or cuttings. e.g. I bought a 6 pack of little vinca in cells for $1.89, they grew big and beautiful. Same for wax begonias. I bought 3 6 packs of those at $1.89 each.
Karen