It is without a doubt true that enthusiasts are not the bread and butter of the industry. Your example of the Camry is a perfect case in point.
I think I only question the decisions being made since they still say the next GTO will be on the Zeta platform as well...it would seem to me that a Firebird would be cheaper to produce simply because it would be so similar to the Camaro.
Then again as you stated, with all the money ills going on at GM right now just about anything can fall under the axe.