I'm a huge fan of rotors aswell. I was looking at a Series 6 RX7 at the same time I bought my GTR. Figured the R would be a better all round car.
The other path I looked at instead of buying the R was to drop a series 4 13B Turbo into my Gemini and do that up some more, but it just doesn't have the street cred of the GTR. Although I don't imagine it would have been hard to get that into the 10's with a diff, computer and some turbo work.
Anyway I will be happy to line up against anyone who feels they need to beat a GTR to give themself cred. I will be shifting easy too, as I dont want to have the same fate as Snowie and Ferni.