We may shortly be seeing the demise of the Woodbury-Salem line as well. The largest of the three regular customers (Ardagh [formerly Anchor Glass], the others are Koppers Poles and Mannington Mills) ceased operations and closed their plant mid-October of 2014. The last empties were pulled out of the glass plant by SRNJ about a week after that, and I haven't seen any traffic on the line since. Though two customers in Salem remain, along with an occasional carload or two being delivered to Woodstown, it's unlikely that it will be cost effective for that line to continue operating, either south or north of where the ownership changes in Swedesboro. Mannington is a recent convert to rail service, having trucked in their supplies until 2005-- and I'm sure could just as easily switch back to trucks if the rail freight rates rise now that the major Salem shipper is gone. Koppers would almost definitely do the same- as of now, they're transloading the poles from railcar to truck at the old Salem Yard, and trucking them over to the treatment facility near the port.
The county owns the tracks south of Swedesboro, and will probably not formally abandon them in hopes that either business at the Port of Salem takes off, or somebody else buys and reopens the glass plant, but I just don't see it happening in this economically depressed part of the state. Conrail, on the other hand, will probably want to get rid of it, as there are no more customers in Swedesboro, and the only former one north of there, Garmar Industries, hasn't shipped or received by rail in some time. I guess we'll see what SRNJ decides to do with the #100 GP9-- when we see it on the interchange track at Swedesboro waiting to get picked up and sent back to Winslow, we can assume the Salem Line is done, at least for now.
The bottom line is Class 1s aren't interested in rural, carload-at-a-time freight service, it just isn't economically viable. Here in Woodbury we still see, weekly, one or two produce reefers get dropped on the team track and unloaded by the business down the street- but that's along a busy rail junction, not 30 miles out of the way like Salem.