I have a friend who works on the Audi team, and I used to follow the series a lot when they were running (now I watch ALMS)...These guys are just getting too "generic" any more. I can see watching because of personal interests, but in order to attract and hold fans, they have to do something different or it will all be history one of these days!!
Maybe racing needs to provide something in addition to "spec" racing to recreate a little excitement. Some of the most exciting racing ever was the old, big-bore, ground shaking, free-for-all CAN-AM stuff of the late 60s!!!
I still watch today, it just doesn't rivet me to the screen!!