I'm sure that the Woods would have liked to go to the Shootout, but like DeeDee said, it's a money issue. It costs money to send the stuff down and run the race, plus you run the risk of destroying a race car. (Also, the Daytona 500 is the only plate race that the Woods will run this year, so they may only have 1 or at most 2 plate cars, so they need to hang on to them for the 500!)
I think this is great for Bill... wish him the best.