From a press release announcing the decision...

Southern National
Raceway owner Kirk Leone announced today
that Southern National will go up for auction in November, the exact
auction date  to be announced in the upcoming weeks.  "This is a great
opportunity for a potential owner to get a top notch facility at a very
good market price," Leone said. "I feel this is a great time to offer the track up for
auction, it will give the new owner time to get things ready  to open
up for the 2010 race season."