A motorcycle roadracer (club-level) perspective:
1. I've been watching Speed since it was SpeedVision and yes, I have noticed a tremendous move towards NASCAR and away from everything else, especially motorcycle racing. Two-wheeled Tuesday is now a 1/2 hour show; it used to be a day of the week that was fully motorcycle-based. And 2/3 of it wasn't about choppers and the ex-ex-ex-playmate host.
2. Had an interesting talk with a co-worker this week re: general population's interest in racing. He said that people appreciate what they do. He appreciates watching pro golf on tv (snore) because he has golfed and can relate to what's going on and appreciate their skill. While he understands my fascination with motorcycle racing, it doesn't draw him in since he has no point of comparison.
There was an article in Cycle World recently discussing this and that to draw in the general public, you've got to get into the personalities. If you can draw from NASCAR where they have a 1/2 hour show about the brand of underwear worn by the top 3 in points, and their ?resultant? popularity, then I guess that's right. When I tell non-racers about MotoGP or AMA Superbike, I do try to tell them about the personalities...
In the end, we can't gripe about the stations doing things for money. This is a capitalist society after all. We could all put our money together and try to make a go of a "The Original Speedvision" channel or something. I miss it like crazy and wish they'd go back to having more of the oddball stuff, esp. motorcycles, world rally, and airplane racing, but... what can I do other than write them another 200 letters? ;-)