No, it's not. Tokyopop can milk more money out of the kids at the arcades than they can by selling the game to people. Besides, the game really isn't any fun on the PS2 anyway. You really need the arcade machine for the experience.
But, besides, Battle Gear is a vastly superior game. Initial D is about the Manga and the Anime (the real ones, not the US "Tak" and "Iggy" crap), not the game.