On an absolutely selfish note: I do not care when they start, as I DVR all races, avoid any news about the races, and watch it (them) at my leisure.
If I had to sit and watch Nascar racing live on "TV", well then, I sure would miss a lot of racing. I have a lot of things I do other than tie up my prime time activities on Fridays, Saturdays and Sundays in front of the TV for Nascar.
Example: The Friday night Truck races, we watch at about 6AM on Saturday morning with coffee and breakfast, takes about an hour and change. The Saturday Bush Race, we Watch on Sunday Morning at about 6AM with Coffee and Breakfast, takes an hour to hour and a half. The Sunday Cup Race we watch during and after Supper on Sunday night, takes about 2.5 hours tops. Easy peezee.
But hay, to each his own.