Thanks. I looked at half.com and the prices there are about the same as the rest of the sites I have found. They didn't have most of his books though.
For DSs first semester, we just went with the college used bookstore. We paid a little more, but he had so many other things going on, I wanted to make it easier on him. For a couple of classes, he found out he didn't need the books and they let him return them and at the end of the semester he just sold them all back to them.
For the second semester, he was on his own and he rented some, bought just downloaded chapters for others and saved a great deal of money.
My middle dd is an upcoming senior and has used chegg.com for every semester but the first. It is so painless and has saved us SO much money! I've been amazed at how little she has paid and it is so easy. They will search other sites like amazon if they don't have it in their stock and send them to you, then you just save the box and send them all back at the end to the one address.
There are some majors where you might want to keep your texts, particularly as they get further into it, but hers isn't really one of them so renting has worked out well for us.

.I like the idea of "renting"some of the books-especially some of the gen ed books he won't need again. I looked there for his math book, if you do a semester rental it ends a month before his semester ends so buying the additional 30 days makes it more then buying new.
DD is in nursing and last year, her school required a "nursing budle" that was only available at her school bookstore. There was no way to know which books were in the bundle in advance so we couldn't shop for them used

My middle dd is an upcoming senior and has used chegg.com for every semester but the first. It is so painless and has saved us SO much money! I've been amazed at how little she has paid and it is so easy. They will search other sites like amazon if they don't have it in their stock and send them to you, then you just save the box and send them all back at the end to the one address.
There are some majors where you might want to keep your texts, particularly as they get further into it, but hers isn't really one of them so renting has worked out well for us.
Then if you want to pay for his books (which I see nothing wrong with), you can reimburse him for what he ordered.