Some would argue yes, but I actually say not in the same sense as other objects since you are getting something else out of them like knowledge, inspiration, etc. A book can also be passed around to other people to share knowledge or ideas. If you buy and don’t read them there’s still the potential that you will eventually or someone else will read them.
Am I supposed to feel guilty for enjoying Harry Potter because of your list of psychotic rants? Because I don’t.