I just beat Persona 4 in a week. I was really busy this past year, so I waited until summer to finally get it on Vita. And holy hell, the game was just as addicting as Persona 3.
I'm wondering if Arena is worth getting. I was kind of reading the basic plot on wiki, and thought it sounded iffy. I know it's a fighting game, was just curious how it compliments the story in 4 (if it's good in that sense).
Going to order the Animation on Blu Ray and plow through those.
Yay, I was in your position 2~ months ago
-Arena: Definitely worth getting if you love Persona 4 and like fighting games. The story is a bit tedious, but it's decent if you're a huge fan of the characters / universe and the arcade mode is much more accessible.
-Anime: Supplementary material for the game. Unlike most anime > game adaptations, Persona 4: The animation is a very much a "by the book" anime (with a few exception). It's a double-edge sword since most of the content ends up being dull, but overall I liked it. The unique perspective on Yu's character makes it worth watching imo and the filler episodes are surprisingly good.