You can put them out there, and regardless what people say here, doesn't mean anyone will take them. But at least you tried. I've yet to see a single person take any of old cabinets that were obviously installed in my building at some point over twenty years ago. But they still get put out there, whole.
You shouldn't have too much of a problem---I took my cabinets down with my dad---unless you have someone who cemented parts of your cabinets into the wall, like I did.