Grumble Grumble Grumble
There is also the 'Samurai X' OVA series, which is composed of a prequel storyline and a epilogue ending for the TV series.
Media Blaster has the Region 1 license for the TV series, while ADV Films has the license for the OVA series. All are now available in collection releases, and are available at any good Anime webstore...
Rurouni Kenshin DVD Economy Box Season 1 (Hyb)
Rurouni Kenshin DVD Economy Box Season 2 (Hyb)
Rurouni Kenshin DVD Economy Box Season 3 (Hyb)
Samurai X (Rurouni Kenshin): Director's Cut Collection DVD (Hyb)