I think my absolute favorite part of track racing (perhaps behind the fact that I'm fat and naturally inclined to short high power efforts on flat ground....) is that there's multiple races every night, you can try things out, if you get dropped, who cares, there's another race in 20 minutes, and it probably only cost you $5 to register anyway.
Track weekly races are more like weekly crit practice series, in that they're cheap, the stakes are low, and you can try stuff. But even then, you only get one weekly crit probably, not 5.