I kind of reflect on this. I once done print making on wood and linoleum and once I inked it on paper it just hit me. Isn't there any connection to a black and white manga and print making? I did remember that during the old times in Japan, they used printmaking in in old Japanese comics. I saw a lot of Durer etching and wood prints once and I always thought he inked them until I understood what printing was. Would it be more easier to make manga through print making, since you could go more precise in drawing, but you have problems coordinating it because once it prints it reverses the image or inking?

Etching: Carves a plate of metal or plastic for the blacks. It requires a printing press to apply the ink on paper. You draw on the plate by scratching it with a sharp object. The ink sink into the scratches and comes out of the paper through the printing press.

Wood Print and linoleum: Carves a block of wood or linoleum for the whites and leaves the rest black. You use carving tools to carve out the whites and a roller to apply the ink.

I don't think etching and wood or linoleum printing is a good idea for a manga, except if you want to do something more experimental. But still, I think that you are going to have problems with the text.
I don't think traditional printing gives so much problems, you can manage it so it isn't reversed and is just printed as you wish it to be read.

Like Utena said, I don't think this is something you should do unless you wanted to make an interesting and experimental manga. But it's definitely not something that should be used all the time. I don't know about you, but I am very picky and precise with my inking, and I found it hard to be precise or predict where the ink was going to go with print-making, which is fine if that is the style you are going for, but I don't think it would work out very well for manga (unless you were doing it for a one-shot) because of how time-consuming it is. In the manga/comic industry, speed is crucial >___<

I know that in the manga industry the manga artist don't write the words in the manga themselves they have the company's typist to insert the text. So the can't reverse the words, unless the artist integrated it into his art.