With sonic as the only playable character in sonic unleashed what replay value is SEGA expecting to have a Chao garden what no Chao garden SEGA said this would be another sonic adventure

Having owned and beaten the game, I still enjoy playing as Sonic and increasing his Speed and Ring Meter. Also the challenges from the hot dog vendor has increased my reaction timing in this game. Not to mention going around and helping people, only because I'm an Achievement seeker. But yes, I do miss the Chao garden, that would have been awesome to have especially the way online gaming has evolved. I would've enjoyed it better to have an upgraded Omachoa floating behind me instead of Chip. To my opinion, I think that it would have been cool to have other playable Sonic Unleashed characters, like Silver, Tails, Knuckles, Shadow, and all of them instead of just Sonic and his werehog form. I've already beaten the game, so, I know that Sonic's the only playable character. Would've been cool to have Silver or Blaze at least seeable in Sonic Unleashed. Guess Sega just wanted to focus on Sonic in the game.