My take on this is that it's dependant on your goals, wants, and needs. Some like having a motor they can run hard all day without worry and some like to have as much power as technology can afford them no matter what the cost. Some like to have streetable power, while some want the fastest thing in the racing circuit or on the dragstrip. You do what you can afford, what you want, and what your driving habits dictate. Personally, I don't want a thousand ponies under the hood...I'll get myself killed and it would scare the hell out of me, to be honest. I am looking at multi-purpose useage, so I need something that I can rely on for a DD, something that has ample power for entertainment at the dragstrip from time-to-time, and something that can take a road course for fun on rare occasion. Maybe I ask too much, but maybe I don't and an N/A motor seems to be the best idea for all three, as I can build it specific to the duty I want it to perform. This being said, I'm building the foundation of the car first...suspension, driveline, etc. Do what makes ya happy, and if you want to do something different, do it right and do it the best!