My husband, who starts back to university tomorrow, just spent $230 on a new textbook, when I found a used copy on Amazon for $48, because he wanted a new book. I spent a while banging my head against the desk and sighing loudly over that one.
On the other hand, he's excited about finishing his degree, which he has put off for many years now, so if this is what does it for him, it's a small price to pay.... at least that's what I keep telling myself. I suspect that once the excitement of the first couple of semesters of "hey, I'm actually doing this" wears off, he'll be buying used books like the rest of us.