I'm honestly surprised that Viz is putting Shippuden on single discs as apposed to a box set. I thought that they would at least release the first thirteen episodes or so, even though it doesn't sound like a lot actually happens within those first few episodes, let alone the whole series.
I'm more upset at Viz for still releasing these Pokemon Elements single discs. I was really hoping that they would announce Johto sets or maybe even the second part of the Battle Dimension season. I love Pokemon, but I wouldn't really buy these elements sets mainly because they're just three episodes focused on either a certain Pokemon/type of Pokemon. Besides, I find that having season sets is more enjoyable than a single disc since there are more episodes to watch and they're in the same season. Hopefully, Viz will release some Johto sets, but it might be when HeartGold and SoulSilver are closer to their U.S. release date, whenever that might be.