My opinion on wet track:
Dry track is whole lot more fun than wet track for me.
Wet track is whole lot more fun than sitting in the office, dreaming about track day.
As others said, we learn a lot from wet track. I'll just drive much slower if it is wet, and still have fun.
That being said, NCM with newer pavement wasn't too bad when wet, if I remember correctly. Some tracks (Mid-O for example) feel like ice skating when wet, especially if it is cold. (You gotta find complete different driving line) We will be running in July so at least it won't be cold.
Let's just pray for dry day and enjoy whatever the weather we get.