Forum:Spin-offs?

Um......why is everyone calling Days and BBS spin-offs? A spin-off is a game/story/ect. that doesn't provide to the main plot, however Days and BBS DO provide. Days shows us Roxas's time in Org.XIII, and Xion. BBS shows us Xehanort's origins. How are either of those not important to the main plot? --Evnyofdeath 19:45, May 23, 2010 (UTC)