But there are surprises on the track. Like I mentioned, riders crashing in front of you, others pulling out illegally on the track in front of you, crashes that leave debris, liquid and otherwise on the track...those are surprises along the lines of what you would have to deal with on the street as well. I stand by my statement, track riding can make you a better street rider. Riding track makes you more competent, and more readily able to ride your bike to your best ability which in turn makes you a better ride on the track and street.
(It can also ruin the street riding for you.

)
I didnt address street riding for racing, but while you can be a tard on the street and treat it like the track, I dont believe its a decent sub for the track time.