Originally Posted by dsvick
In my opinion, and much of this is just personal preference, the ability to highlight and take notes in the books themselves is a huge study aid.
If you are talking about college textbooks that you buy that's all well and good, but you aren't supposed to write in "loaned" K-12 (or the furriner equivalent) in the first place. And there are plenty (a majority?) of poor college students who try to keep their bought books pristine in the hopes of selling them back after the course is over. So for a large segment (the majority?) of the target audience the choice is between a textbook that you don't write in and a textbook that you don't write it.
(I've never been a person who writes in books.)