As stated above, most people will never use ANY sled to it's full potential, whether it be stock or far from it. I am included in this group. But, as you can see, I run a fully built Turbo PRO. It's fun. More fun than stock for sure. I like having the ability to go anywhere I want. Sometimes I get into places that I have no business being, but hey, that's half the fun, getting out of situations that test you.
As far as the sled is concerned.... If you want reliability you stay stock, obviously. Next in line is the big bore and then boost. I have owned all 3 and they all have their ups and downs.