firstly, if you think that the car market is being flooded by turbos, then your in dream land.
For the 2 new turbo vehicles you meantioned, how many are dropping the turbos.... eg, the new skyline, the 350z etc etc.
and kr1sh, i think you will find the last bit of that statement you posted pretty true.
"The manufacturer has gone to truly extra ordinary lengths to prevent aftermarket enhancements from altering the power output of this engine"
not only have they made it damn hard to play with the ecu, but it will tell them of boost changes etc that have been made, making any warranty void.
however, in the next few years when these vehicles drop out of the warranty period, im sure u will find some very mean examples on the street.