F1 seeds

F1s I don't mind using sometimes because we don't have the space to save seed from biennials like roots and certain brassicas anyway. Some things are also more effort to save seed from, like courgettes and cucumbers. Sometimes F1s are just better for what I want - faster growing, earlier to crop, bigger yield, better disease resistance, slower to bolt. That said, I don't buy many F1 seeds unless they're on offer because for most crops, open pollinated varieties are good enough. Peppers and tomatoes are relatively easy to save seed from and seed is expensive (moreso than other crops, I find) so I usually only grow open pollinated varieties there.