I know up to a couple of years ago you saw lot's of the Fiero/Ferrari kits on the market, is this still a popular trend or is it dying out?  

It seems to be dying out to me.  I suppose a good Fiero is getting harder to come by, parts not readily available, etc, but just how many mid engine cars can you start with?  I hear stories of lawsuits on copies, but a lot of that seems to be just pure bull.  

Yeah that seems to be what I was thinking, I mean the last Fiero mad is coming up on 18 years old. I guess that the scene will continue to evolve as donor cars continue to evolve.  

It seems to be dieing out to make way for new models like the Enzo Ferrari kit check it out http://superreplicas.bravehost.com/  

That removes it from the "rebody" type that the Fiero was, and into an entire new car.  I suspect there is a market for both, but the higher the price, the less those interested.