Would the trash guys have taken all those bathroom stalls or left them??

Last winter, I scrounged a couple of rear projection tvs and some other stuff from an apartment complex dumpsters because the trash guys wouldn't take them and the suckers would just lay next to the dumpsters for week or so. I would think a trash company might jack the rates to a business if they would put out unusual loads like that or charge a special handling fee for such a load. Or is the dumpster used by multiple places and the trash guys won't know where that big load came from??