Not really if you can do your own tuning, and can source some GSX throttle bodies.
I've got intake and exhaust on my car. I didn't pay that much for it, and the intake came with the car. I'm about to get a header, since my manifold needs to be replaced anyway. If I choose to do anything later, I'm going to need most of those parts, and since I don't plan to boost, I know I can keep using them.
I like the info, but let's not make value judgements. If you don't think I/H/E is worth the money, don't buy it. As for me, I recall that the article said response had improved noticeably even if the peak horsepower didn't jump that high. I also like the sound those parts make. That makes it worth it for me.