I like japanese animation (and to an extent manga too. I have to follow up when an anime title ends before its time). In fact, I love anime!
That said, I am also just as "bad" as the rest of you. I must have a hundred seperate animes, with subsections as to different storylines in the Gundam franchise for instance. In may be much, it may be little, it depends on where you stand I guess.
Buying the series can be expensive, and I think not even me can buy all of it. But think about buying your absolute favorite show, at least a couple. Support the industry that showers us with the shows that we have come to love and depend on. I think one way anime's end before the manga story cane be just because of what we do. Getting it for free, we don't show the producers our interrest and they earn too little to want to follow it through. Just a though guys.
I now have the following on my shelves, and it will slowly expand as I can afford it: Bleach (three first box sets anyway), Ghost in the Shell SaC S1, 2 AND movie (Solid State Society), Wolf's rain, Chrno Crusade, Ah! My Godess S1 (Box set of S2 comes in december, I plan to send my order at that time

) and I am now in the process of getting Naruto. I guess Shippuuden will have to finish before the box sets become available, otherwise I'd get those too.
There are more favourites that I'd want to add if they were available, but I have not found them, at least not in european/UK market. Oh well, that's beside the point really. Just... think about it, will ya!