The catch is the PCM costs $25,500 to install and comes with a 6.4L hemi.
Ha! That certainly is one approach.

I'm liking the benefits of Turbo more and more, especially since my driving can take me into the Sierras for skiiing, so we're talking about a range from near sea level to 10K ft. Seems like the turbo would cope better. Would a supercharger just start to behave badly at altitude, or will you just get less boost?

The other side of this of course is that the install is definitely very involved compared to the SC, and being in CA I am concerned about passing smog tests later (my truck is new enough to not worry for a while, but it will happen eventually).