So I've been poking around the interwebz and been getting back into 40k after a three year hiatus, and the Gaunt's Ghosts series came to my attention. I was always interested in reading them, but never actually bought them due to financial constraints of being a poor high school student.

Now that I have a full time stable job and am a poor college student, I looked them up again and am trying to get ahold of the Omnimbi. Good gods they are expensive! Did they go out of print or something? The cheapest I can find of "The Lost" is almost $70 used. Would I have better luck just going to local bookstore or is the internet the only place to find these anymore?

Or do I need to actually shell out almost $300 for the full series used, let alone new?