Just bought the first season of Adventure Time on DVD and I must say, it's a very fun DVD box set.
Adventure Time box
What is really nice about this is the price, it wasn't very expensive or anything. I bought it at my local store and it's pretty cute. Also it's got 26 entire episodes. Anyway I love watching it. Season one is probably one of my favorite seasons for this show.
The only thing is I wish there was a DVD/Blu-ray combo pack. But the DVD will have to do for now.