#2, There are many, many things that are actually quite horrible about the Gran Turismo series... but dammit, I'm gonna drink the Flavorade... when (if?) Gran Turismo 5 (finally) comes out, that'll be when I purchase a PlayStation3.
#4, Sounds like it's turning into the Mullin Museum, open to the public only for certain dates or special events. Remember that the GM collection went by the wayside years ago.