Well, those in the link aren;t Carillo rods for one. and there is a MUCH bigger market for v8 rods. Motorcycles are not even remotely close in mumbers as car performance parts. On top of that, the market seems to support it so the prices rise.
That said, I am not sure how $1050 a set for Carillos is more affordable than ever. Maybe more affordable than when they raised prices when raw material prices skyrocketed, however, raw material prices are as low as ever now and prices haven't seemed to come down.
I guess it is easy to use the few dollars more in raw costs to justify a $100 increase when in fact the rod manufacturers just wanted to increase prices. Any and all price increase that used raw material prices as an excuse should now be back to their ooriginal prices or even lower in some cases if the "excuse" was legit with the excpetion of titanium.