I'm not talking the one you bought that you like the best, but rather the best deal you ever got buying an anime, even though/if you didn't know what it was about.
Example? I was at K-Mart the other day, perusing the workout videos, and mixed in was a 2-disc anime dvd pack. Its called "Cyborg 009", and when i went to price check it, it was only 3.99!! So of course I picked it up, even though I've never heard of it. It's actually pretty good, made in 1979 (according to ANN). Though it's not the best thing I've ever seen, it makes the top of the best thing I've ever bought list!
So what about you?