I think I know a big reason why these topics are getting stale. Lexus has released all the information that we need to know so there's no more speculation. No one needs to argue over the price, NAV system, etc. etc. In fact, thanks to TEG, we know waaaaaay more information than the average IS 300 buyer.
Personally, I'm just anxiously waiting it's arrival so I can take it for a test drive and hopefully drive home in one.