What's your most expensive anime DVD purchase?

What's everybody's most expensive anime dvd purchase? Your pride and joy/shame for spending so much on so little of a thing? Guidelines(guidelines? Sort of? Not really?) Single purchase, be it DVD or Box Set but not multiple i.e. Tenchi Muyo War on Geminar Part 1 but not part 2 unless you bought them in the same lot such as on ebay, so no buying part one and two as separate purchases on amazon but purchased at the same time. Mine is probably one the lower end of the scale with the Ultimate Tenchi muyo Box Set for about $71, consisting of 13 ep.

Clannad : $51.79 Clannad AS: $51.79 Both Blu Ray...

The Hellsing Ultimate Blu Ray collection lil over $100 since I bought them separately

Back when Dragonball Z was being released on VHS they sold for like 20$ per four episodes. I think I still have the end of the Frieza saga all the way through the end of the Buu series. Jeez, that must have put a lot of peoples kids through college.

Cool Devices box set, Inmu, Twin Angels, Bondage Queen Kate, Nightmare Campus, and Bastard in a lot. I think I got it for $75

I got a box set of Tenjou Tenge when I was a kid. http://www.littlestargifts.com/images/Tenjho%20Tenge%20-%20Complete%20Collection%20%28DVD%20Box%20Set%29%20%28DVDs%29.png I remember my mom coming in my room and seeing it. She said, "Oh, so THAT is the kind of anime you watch nowandays. Alright sweetie, dinner is ready in 15." I tried to explain to my mom that it had really cool fight scenes and ended up lying about why they had so little clothing. I was not good at lying...

Bought Dragon Ball, Dragon Ball Z Kai, and Dragon Ball GT recently. All of the box sets. Literally so my dad and I don't have to wait a week to see the next episode. We are very lazy people.

Scryed Collectors Box complete with Keychain, T-shirt, and i think it was art cards. Cant remember it all but it had quite a few things with it. Spent $150, needless to say it was money well spent because it is one of my favorite series.

5 dollars a disk for 3 disk that I thought I was getting a good deal on being One Piece, but turn out they were bad Chinese sub english. Those there are some very funny duds of Little Garden. Or another time 6 USD on 4 One Piece movie dvds after bargaining the price down from 15 USD at the end of a con at some American comic both were the dude say they were English sub he got from some where and want to sell them, turn out they were all full Japanese with no English sub on them. Just my luck I only know some Japanese writing and only know some words in it. lol

I suppose that would probably be a batch of black rock shooter figs I bought which came with some dvds/BD of the original ova. I think it was like $80 ball park but I sold a few of the figs that came included so hard to say what it really came out to.