Looking at those motors, it's actually surprising to see that there aren't many owners on here who have gone in that direction. I mean, I'm pretty sure a large majority of guys on here would own most of the cars on show. A lot of the cars are pretty cheap as a base model, and the looks and tuning potential is incredible.
Owning a Japanese car myself (Ok, UK and Prodrive fettled, but still a Jap motor), it's easy to see the attraction. You really could do some proper damage with any number of these cars, and all for relatively small sums of money, really.
I think people just need to take the plunge. Like I say, it's surprising that more people haven't just gone down this route, even for the "been there, done that" phase.