Chao should get their own game or at least be included again

Dear Fans of Chao,

After discussing with someone on a Forum I came to the conclusion that something is going wrong with the Chao from the Sonic series. Sega what are you doing? It came to my attention that some people bought the game solely for their Chao and I personally bought Sonic DX mainly because it had another Chao Garden.

Would there be a good reason why they are used less often? In the Sonic Games lately there might not even be a reference anymore. Dont they understand we adore these little critters?
A lot of people put a lot of time into creating their Chao and training them so much time that I started thinking that an exclusive Chao game would be wonderful. Even released for a handheld. I tried making a fan game myself but I wasnt skilled enough back then. But still an official game would be much better.

Can you visualize it a Game where you play mini-games or walk through adventure levels with your most mature Chao to gather materials and items to lvl up and expand your garden or Chao community. Over the time you play your Chao get stronger and in more elusive colors.

Maybe I can do without the full Chao game but I would at least like to see another Chao Garden soon in any sonic game! If I have the console and Chao Garden is in a sonic game for it then I will most definetly get it.