I think its more to do with whatevers the strongest in the aftermarket market. I mean Skylines are still in the top5 most sold cars second hand in australia, and in japan there is that many its not funny. It wont be long till the skyline is more affordable like the r32 for ppl to mod, as prices generally come down, and then the new ECU will support it an niche the market like the pfc did. if apexi is looking to the future and cutting us rb25ers out then that might be a bad move considering how many ppl want the PFC right now...
i think a guy put his kid on ebay for a pfc...
Apparently though, apexi is still in production for people that order them in bulk, Guilt-Toy on the forced induction section has highlighted that ppl on ebay selling them brand new are getting them from somewhere.