Hmmm... not sure where all the exotic colored cars are either.
My 2008 Boxster S Limited Edition #5 of 250 in GT3 Orange
My 2008 Cayman S Sport in Signal Green (with Hans Peter Porsche standing next to it at 2014 Porsche Parade)
2007 Cayman S in Carmen Red (sold this car when I bought my CSS)
Exotic colors are out there, you just have to look for them.