the 75th package on a limited is kind of an odd one... haven't even seen one in the flesh actually. i would go with a 75th laredo or just a regular limited... and yeah, if going with a limited with the more common v6, just get a one year old one... can find the occasional exec. leased one for a good buy... or a rental for even a bit less.
as for the MB comparo... meh.. i've had a lot of higher end cars on my lot lately, and if anything, it has made me appreciate the newer build quality of the chryco stuff... it still has it's issues, but to dismiss it all together is a mistake. and the whole daimler chrysler days? god... as someone who worked pre, during and post, it was the worst time for chrysler... whether with factory communication, with product development, build quality, and new deals with suppliers... it was the worst... look at a grand cherokee pre daimler, during, then after... the during is the worst...