In a typical run of small cars... eg. Accent, Corolla etc. - they can expect 40,000-50,000 per year.
Now how many do Skylines do you see?
My point is that for a cheap performance car (ie. I expect R34 GTt to be under $40,000) - is it surprising you don't see more!
How many Honda Preludes, Toyota Celicas or locally sold coupes do you see?
T.