It's not a stupid question at all. The track is located on the Ventura County Fairgrounds, and it's future is completely up to the Fair Board (you could write to them, too, but I don't know the address). Last year the Fair Board proposed a new design for the fairgrounds, and it didn't include a race track. In it's place they said they wanted an outdoor amphetheater for concerts and such. They figure they would make more money having a couple big name concerts a year there. Actually, they think they could get lots of big name concerts there, but you and I both know how cold it gets down there at night, even in the summer, not to mention what the traffic would do to the area. They need to raise a couple million bucks just to get it planned out, so we don't see that as an immediate threat.
Then there's the handful of idiots that write letters to the Star protesting because of the noise. One man that lived down in the marina went as far as to claim he couldn't hear his wife talking to him with their windows open when the races were going on. lol. These people are hoping that the city council will do something about it, which they could. That's why it's nice every once in a while to see letters in the paper that support the track.
People seem to forget that there has been a race track at that location, in one form or another, since the late 1800's. They also don't seem to realize what a great family environment it is. From babies to 80 year olds, male and female, you'll see them all at the track every Saturday night.
Anyway, a letter to the fair board, or to the Star, would be the best thing I could suggest right now. There was an organization formed to save the track, but I haven't heard much from them lately, and their website doesn't seem to be around anymore. You could go to the track website though and see what's up there...
Ventura Raceway