Any decent online stores for back issues?

While there are a gazillion and a half online stores selling anime, I've found very few that even sell the slightest amount of manga (er, the stuff that's been released in the US, not the original Japanese type), and when they do, it's only the lastest issue. Are there any decent online stores that carry a respectable amount of older manga titles? Is there simply not enough of a market for online stores of this type, or are there just not any stores out there stocking a decent amount of back issues? Or, if there are good online stores, could some kind soul direct me to finding them? ^_^ Thanks!

^_^ shidoshi

Good Day,

Well, I can't say I have a large amount of manga at the comic store (Comic Cave) where I work, it is of various ages. In general, from my own buying experiance, I find that a comic store will either have lots of Lone Wolf and Cub and the first Viz/Eclipse comics (and these older stores simply didn't bother to try the new stuff) OR recent manga (tend to be younger stores). Some really large comic stores just have lots but this is just because they are big (although almost universally, the prices are not so good). In any event why don't you give us list and we will do our best to fill it. Our back issues are always at least 25% off guide (or cover price) and there are 3 Comic Caves here in Winnipeg where I can draw back issues from.
http://www.mbnet.mb.ca/~kthomas2/comic_cave.htm

Try Ekotoba if you don't mind second hand manga, http://web.kiwi.ne.jp/~ekotoba/Manga/Meg.2.html