I recently purchased a steel Motobecane frame from a local thrift store. I sanded it down to the actual steel frame due to all the scuffs and scratches. I'm wondering if anyone has ever left the bike "unpainted". I'd buff the steel and put a tough finish on it to keep it from damage, but has anyone actually done this?

Also: Since all the logos and decals are gone now, I was thinking of etching them into the steel using some type of acid. It would sure give it a clean and unique look!