If it includes After Story, watch it right now. If you don't, get it and watch it back-to-back. I think the pacing of the first season is not really good, but the After Story season is amazing. Also, I am quite happy to see the community having such a refined taste in animu.
Ok, here's one which is more difficult but I gave you a hint by posting a screenshot of these 2 characters:
I bought it from an online retailer's holiday sale last year. Got the first series, After Story, and the movie, all on DVD (the re-released dub/sub versions, not the sub-only versions) for $60. Was too good of a deal to pass up on a great show I hadn't seen, but I haven't had the time to watch most of what I bought during that sale. (I bought a LOT since several entire series were going for less than $10.)
I know this one (it's one of my favorites), but I've had a turn, so I'll see if anyone who hasn't wants to step up first.
Another week goes by, I'm wondering if either they're too hard, or if nobody is even coming to play anymore D: Oh, and Kamisama Dolls.