What everybody says is right. You buy what appeals to you. I had 6 Vettes, would not trade any one of them for my SSR in terms of practicality or Eye Candy.
My 04 Slingshot Yellow is for sale here in South Carolina, I just bought an AquaBlur 6 speed. Wife says no need for two. 41K, no Issues, Jeremy Tune for that extra 50 HP and performance change the 5.3 was in serious need of. Chrome Wheels, Spare tire kit. A little custom stuff. $22000 Fanatic price. $23 elsewhere.
I would never have bought a yellow anything, I really wanted a Red one, My neighbor the policeman said just drive over to the house and he'd give me my first ticket if I bought a Red one, they just get noticed by Police a lot more. So I drove lots of them from Dealers, lots with issues. Wife and daughter both said absolutely NO to a purple one. Black is too hot, Silver too plain. and I never knew about PacBlue or Aqua when I started. Found a perfect low mileage truck, happened to be yellow, & somehow the color just radiated happiness. My AquaBlur is subtle and mysterious, and classy and deceptive, but Slingshot Yellow R is gorgeous, all day every day and you can find it in any parking lot in the world.
I would suggest buying a Truck from one of us Fanatics, there is a lot of love and care and support to the vehicle that we all give and encourage, that others without this group information just are never going to have, no matter how many times they went to the dealer.
You will get a better truck from someone who had the knowledge and interest to take the best care of it.
The 04 is plenty of performance, the LS-2 takes it to another place, but most of the time its running at 1500 RPM cruising anyway, the 06 just gets there little faster.
Have fun shopping, let us know what you decide.