Yes, textbooks are expensive... no matter where you go. For my books this semester, I shopped around and found the prices at Rebelbooks to be competitive. I also like that you can walk through the store and select your own textbooks rather than have someone pick one out for you from behind the counter.
In addition to my positive buying experience, I ran into a problem with one of my textbooks (no fault of the bookstore). The manager was willing to help me out and ended up saving me a lot of money. Customer service is key and they definitely have it at Rebelbooks.