where is a good place to get old manga series cheap?

Question

there's certain manga series I'd like to read but some of them are to expensive. where online is a good store where I can get some of these old manga series.

any of the following:

slayers
legends of mana
oh my goddess
marmalade boy
sailor moon
yu yu hakusho

Answer 1

some good places/sites in general to look for manga in general are:
http://www.discountanimedvd.com/
borders (http://www.amazon.com/exec/obidos/tg/browse/-/577394)
suncoast (http://www.suncoast.com/)
barnes and noble (http://www.barnesandnoble.com/)
http://www.midtowncomics.com/eshop/manga.asp?crypt=HPcog%3F%28NPcog%3F%28WugtKF%3F787%3B37429%28WutPcog%3F%28WutV%7Brg%3F%28WutNgxgn%3F&CGID=66
you should also check the publisher site (ex. tokyopop, shonen jump)

i found most of the series you wanted [slayers, yu yu hakusho, oh my goddess] at http://www.discountanimedvd.com/
borders [amazon.com] had marmalade boy
i think sailor moon, which was originally published by tokyopop, is out of print now, so it may be hard to find a new copy

hope this helps. good luck!!

Answer 2

I have found lots on eBay