It is a interesting question in definitely a multi-faceted answer.
I have a trackhawk and a Rubicon 4XE.
And open till a few months ago I have always had a pickup truck, I sold my Denali 2500HD and actually placed a order for a TRX. In the 3 months while I was waiting for the TRX to arrive, I realized I really did not need a pickup truck after all. Then due to a software glitch during the time I ordered my TRX the truck came missing several key options, so I declined receiving the truck. My salesman completely understood man of course the truck was sold to somebody else within 24 hours.
So instead of purchasing a TRX truck, I got a Redeye. I got it for Christmas so it's only been a couple of months but so far I can say I have been very happy with my decision.
So I think what it comes down to for anybody in this situation is the question, do I need a truck? if the answer is yes you might as well get the best damn truck made which is the TRX if you don't need a truck maybe the red eye is the way to go.
Also related to this, occasionally I will drive the trackhawk which is my wife's car and although from a dig it is hard to beat but once you're at a speed where traction is little longer an issue, the redeye will make the trackhawk seem kind of sluggish.