As he said, Johto Journeys wasn't sold in a box set (yet). Have to track down costly individual volumes.
Viz has already stated that boxset editions are coming later this year, so just wait instead of paying $50+ for a 3-episode DVD. And the singles don't even include the final 2 episodes of the season.
EDIT: Almost forgot the movies. Movies 1-3 (Mewtwo Strikes Back, Power of One, and Spell of the Unown) and the Mewtwo Returns special are long since out of print (no idea why WB won't re-release it) and are in old-school snapper cases. All are dub-only and in fullscreen. Movie 1 takes place in Kanto, Movie 2 in the Orange Islands, Movie 3 and the Mewtwo Special take place in Johto.
Movies 4-7 (Pokemon 4Ever, Pokemon Heroes, Jirachi Wish Maker, Destiny Deoxys) were originally released by Miramax but re-released by Echo Bridge in DVD and Blu-ray. Movie 5, for some reason, has a blue tint on all versions. The original Miramax versions are in fullscreen but include the Pikachu shorts and other extras. The Echo Bridge releases are in widescreen but have no extras. Easy way to tell the difference is that the Echo Bridge releases say "Miramax" on the top of the cover, but the original releases do not. Movies 4 and 5 take place in Johto. Movies 6 and 7 take place in Hoenn.
Movie 8, Lucario and the Mystery of Mew (one of the fandom's favorite movies) was originally released by Viz with the Mastermind of Mirage Pokémon special but was recently re-released by itself without the special. Takes place in Hoenn.
Movie 9, Pokemon Ranger and the Temple of the Sea, was released in a 2-Disc Set by Viz and had a bunch of retailer exclusives. Takes place in Hoenn.
Movies 10-13 (Rise of Darkrai, Giratina and the Skywarrior, Arceus and the Jewel of Life, Zoroark: Master of Illusions) were released by Universal. None of them include extras. All take place in Sinnoh.
Movies 14-16 (Victini and Zekrom/Reshiram, Kyurem and the Sword of Jusice, Genesect and the Legend Awakened) are released by Viz. The Victini movie is actually 2 movies, one based on Zekrom, one on Reshiram. Both come in the same pack. All take place in Unova.
Movie 17 (Diancie and the Cocoon of Destruction) was just recently released and takes place in Kalos. Do note that, for some odd reason, all the music was replaced for the dub.
IMO, the best movies are Spell of the Unown, Jirachi Wish Maker, Lucario and the Mystery of Mew, Rise of Darkrai, Giratina and the Sky Warrior, and Kyurem and the Sword of Justice. The Arceus and Zoroark movies are decent too.
If you try to get Jirachi, try to get the original version as it includes a music video of the Japanese ending song and has the best of the Pikachu shorts.