I agree that dynamo hubs are MUCH preferable over bottle dynamos. The one exception might be where you install it with the idea that you will rarely use it. The advantages of bottle dynamos are light weight and easy installation.

It is definitely more work or money to install a hub dynamo but there's a good chance that once you get it, you'll wonder why you waited so long. That has been my experience. It weighs a bit more, and some object to that, but if weight is objectionable because it makes riding harder, that's misguided, because the bottle dynamo adds much more effort. I leave my lights on all the time because I don't perceive the drag that my hub dynamo introduces. It's there, and it's measurable, but I don't perceive it, and that's what matters to me. And having my lights on in the day might enhance my safety. I suspect it helps people see me sooner and respond to my presence and trajectory, and I believe I have seen this happen.

Whatever dynamo you use, be sure to use modern lights. They use less electrical energy, and they emit much more light than old lights. I have run modern lights with old bottle dynamos, and other than the expected drag and noise, the setup worked perfectly well.