It's long been said that sleepers cover their above-the-rail costs at a profitable level. The PPCs are an amenity for sleeper passengers, so I would assume their expenses are classified under the sleeper category. I wonder if in that light they're a net positive or net negative for Amtrak. I guess removing them isn't going to lower the loads on sleeper class on the CS more than a small fraction, so removing them would have a net increase on the bottom line, but still, if they're not the difference between sleeper class making or losing money, I'm not sure it could really be argued that removing them is going to be the difference between Amtrak continuing and discontinuing their long-distance services.