Re: When to buy??
Good question. This rig is so much in demand that the usual model-year-end discounting may not be terribly attractive unless you're willing to settle for something not very popular, such as a stripped-down 2WD in a low-demand color.
But, who knows what with all that's going on in the Middle East that a turn for the worse could drop demand for vehicles that don't sip gas.
Personally, we're hanging in there for MY2012's opening bell, realizing that we'll likely pay a bit more but also it will be worth more than a 2011 later on.
But don't expect the 2012 to be much different from the 2011. If that's of interest to you, follow this forum for first news of changes, such as LED taillights...and possible decontenting.