Well, the ?60 is a designation that Trek used for their racers.

The 460 designation is an entry level (I think) racer. Not a bad bike at all. What frame tubing does it have? I recently bought a 560 that has butted Reynolds 501 tubing.

Depending on the size, and your location, a 460 could be sought after for a roadie, or for someone looking to convert it to a fixie, so you might be able to get a reasonable price for it if it is in reasonable shape.