Otis Nixon was an league average CF from 1989-1993, and had a streak of nine straight seasons of an OBP over .330, 7 of which were .348 or higher. That's the value of speed. You can still be very valuable even if you don't put up a godd OPS.
I would be very happy if Hamilton put together a career like that as a Red. The Reds would win many division titles if he did.